zelin0802 / November 4, 2024

Greubel Forsey Nano-Foudroyante EWT watch is here, a small watch with a big idea

Greubel Forsey’s latest watch combines a completely new type of foudroyante with GF’s first flying tourbillon, housed in a case that is classically styled and sized.

Greubel Forsey replica has been renowned for many reasons since the brand was founded in 2004, including the extremely meticulous hand-finishing of its movements, the delicate and almost microscopic construction of those movements, and perhaps most importantly the seemingly inexhaustible creativity that founders Stephen Forsey and Robert Greubel have brought to the creation of complications. The company has created many highly complicated watches, but is best known for its tourbillons, which over the years have included multi-axis, double and quadruple tourbillons, and high-speed tourbillons. In recent years, GF has also experimented with less complex but equally well-made watches in the Balancier collection, but lest it appear that GF is no longer in the supertourbillon business, they introduced the Tourbillon Cardan in 2023, which embeds a tilted tourbillon within a double-ring oscillating system. Today, GF announced the launch of its latest EWT, or “Experimental Watch Technology” invention, released in limited quantities – the Nano Foudroyante EWT – to celebrate the brand’s 20th anniversary since its founding in 2004.

The nomenclature of Greubel Forsey inventions is a little confusing; the company announced this as its 10th foundational invention, though it announced an earlier version of the Nano Foudroyante in 2017 as its third EWT invention, distinct from its other “foundational inventions” – the other two EWT inventions at the time were the Synthetic Diamond Binomial Escapement in 2009 and the Différentiel d’Egalité (Spherical Differential Constant Force Device, patented in 2006), the latter of which went into production watches in 2018; I don’t think the Diamond Binomial Escapement was actually ever produced. The original version of the Nano-Foudroyante was really more of a technology demonstrator, though, as you’d expect, it was pretty impressive.

The lightning-seconds hand (sometimes called the diablotine or “little devil”) rotates once per second, usually jumping in a different pattern corresponding to each unlocking of the escape wheel. Since the lightning-seconds hand is usually driven by a wheel mounted on the escape wheel axle, whatever gearing is used must be as light and low-inertia as possible so that the escapement can lock and unlock properly. (A more complex example of a lightning-seconds hand is the Centigraphe by FP Journe, which adds complexity by engaging and disengaging the lightning-seconds hand as the chronograph is turned on and off, incorporating a reset mechanism and a method of braking the lightning-seconds hand between jumps). Bugatti Chiron replica watches

The 2017 prototype introduced a new approach, using a tiny gear on the escape wheel axle that is actually much smaller in diameter than the escape wheel itself. This LIGA-made gear drives the crown wheel (also very small) on the tourbillon hand axle, and since this axle rotates at right angles to the plane of rotation of the go-wheel train, the actual tourbillon hand and dial are built into the watch’s caseband.

This time, however, GF has opted for something more complicated, but also more practical and creative.

If you are familiar with Greubel Forsey, the first thing you will notice and be surprised by is the size of the watch. Usually, GF watches are large, partly for practical reasons and partly for aesthetic reasons; for example, the Quadruple Tilted Tourbillon has many advantages, but it probably won’t prompt anyone to write or say “surprisingly wearable” (for example, the Quadruple Tourbillon GMT measures 46.5mm x 17,45mm, although in addition to the two double tourbillons, it also has a rotating miniature globe). On the other hand, the Nano Foudroyante measures only 37.9mm x 10.49mm in a white gold (case center) and tantalum (bezel, caseback) case, which is smaller than some fake Grand Seiko time and date watches.

The second thing you will notice are the two pushers at 2:00 and 3:00 on the side of the case. The watch is a column-wheel-controlled flyback chronograph with a central chronograph seconds hand and a 60-minute counter at 9:00. The running seconds hand is visible at 8:30 on the dial. So far, so good, and relatively conventional too, save for the slightly unusual sub-dial layout and the use of a mix of white gold and tantalum.

The main attraction, however, is the tourbillon, which is positioned slightly asymmetrically and visible through an aperture between 4:00 and 7:00. This is a first for GF in several ways. Arguably the first first is that this is a flying tourbillon, and despite GF having created so many tourbillon variations, it has never done a traditional flying tourbillon before (the closest thing is probably a gimbal, although technically the upper bridge is actually part of the innermost rotating ring). But what really catches your eye is the foudroyante dial that sits on top of the tourbillon.

The basics are the same as the non-tourbillon 2017 version, but obviously the earlier model did not have the foudroyante hand and dial on the tourbillon itself. Since the escape wheel is on the tourbillon cage (as all tourbillons are), in principle it’s just a matter of figuring out how to move the foudroyante hand off the escape wheel, but – and this is a big but – there’s little room for the drive gears unless you can scale them down small enough to make the whole thing possible. Tourbillons with foudroyante have been made before, but never on the tourbillon itself. The foudroyante dial is a satellite – that is, it’s geared so that its vertical axis never changes; the 6 is always at the top of the dial, no matter where the one-minute flying tourbillon is in its orbit. Those interested in balance will notice that the weights on the tourbillon cage are quite asymmetrical, due to the foudroyante mechanism; GF compensates for this with a platinum counterweight (hidden on the bottom of the cage). luxury cheap Watches

The actual nano-drive system is in a housing beneath the tourbillon dial – I presume it’s directly above the escape wheel – while the satellite gears needed to keep the system’s vertical axis upright appear to be located below the “GF” on the central axis of the tourbillon itself. The energy required to drive the tourbillon is very small – and I quote GF: “Compared to a conventional tourbillon that consumes 30μJ (microjoules) per jump, the nanotourbillon consumes only 16nJ (nanojoules) per jump, reducing energy consumption by a factor of 1,800. As a result, the device is 90% smaller.” (A joule is an SI unit roughly equivalent to the energy required to lift a medium-sized tomato one meter off the ground. If you’re a Newton fan, use an apple). The 2017 system consumed a bit less energy – GF told us at the time that it consumed 5 nanojoules per jump – but this is still in the order of 16nJ, and is very reasonable given the adaptability of the drive system to the tourbillon.

If you want to quibble about terminology, “nanotechnology” usually refers to mechanisms on a scale of 1 to 100 nanometers (billionths of a meter), that is, the size of individual atoms and molecules, but I think we can forgive GF a little exaggeration on this point. By comparison, 160 nanojoules is the energy of a flying mosquito. It’s fascinating watchmaking, and it’s fascinating engineering.

Of course, there’s more to the story than nanojoule engineering. First, if you’re interested in this watch (and I hope you are by now) and in GF in general, you’d hope that they didn’t give up anything in terms of movement finishing, and that seems to be the case.

The movement is extremely compact; just 31mm in diameter (if that number makes your eyes light up, there’s a reason, it’s the smallest movement GF has ever made). The movement has a uniform upper bridge (GF hasn’t provided a caliber name yet, but there’s absolutely no reason to think you wouldn’t recognize this movement immediately), and as far as I can tell, there’s not a single internal corner that isn’t as sharp as a sashimi knife, which is nice. GF has a habit of engraving text on the dials and movements of some of its watches that expresses its design philosophy, and here we see a bit of that, but in keeping with GF’s 37mm high quality cheap watches, the scale is modest and understated, only on the central chronograph seconds wheel.

If you want to know how much effort any brand or watchmaker puts into perfecting its movement, two good places to look are the stabilizing pins and screws; the stabilizing pins visible on the movement are domed and black/mirror polished; the screws have beveled slots and heads, and every visible surface (including the slot, the slot bevel, and the bottom of the slot itself) is black polished. And of course, the beveled countersunk holes.

Greubel Forsey is one of three contemporary independent watch brands that I wish I had collected from the beginning – the other two are MING and MB&F, and all three have some personal reasons (I say that, but when it comes to watches, I guess all reasons are personal). One of the most memorable moments I’ve had as a journalist and collector was sitting next to Stephen Forsey at a dinner in New York in the early 2000s, just as the brand was launching in the US, and I listened to him speak for an hour about the theory and practice of the tourbillon and the principles of the multi-axis tourbillon, and I remember at the end, when I asked him if all these complications really offered any real chronometric advantage, he said: “It’s always a struggle to gain more than you lose.” It’s great to see that GF is still pushing the boundaries of mechanical timepieces, and surprisingly, they’re doing so in a 37.9mm watch; putting the Nano Foudroyante in a large case would defeat the purpose of the whole exercise.

I hope to see it one day – limited to 11 pieces, price on request. I don’t quite like the odds, but as a decades-long watch enthusiast, I don’t ask why, but why not? I’m glad it exists.

Greubel Forsey Nano Foudroyante EWT: Case, 37.9mm x 10.49mm, white gold case, tantalum bezel and caseback; water-resistant to 30m. Rhodium-plated gold dial, engraved and black lacquered hour-markers and tourbillon minute ring opening; gold small seconds and chronograph minute counter. Movement, Nano Foudroyante mounted on a one-minute flying tourbillon, monopusher flyback chronograph; manual winding at 3Hz, power reserve 24 hours with chronograph on. White gold pin buckle, hand-engraved GF logo.

zelin0802 / May 20, 2024

Greubel Forsey GMT Balancier Conveexe

Greubel Forsey debuts the new GMT Balancier Convex watch at Geneva Watch Days, emphasizing its technical prowess by incorporating its iconic tilting balance wheel into the design. This new GMT movement is manually wound and consists of more than 400 parts. It replaces all previous GMT models and thanks to its superb decoration and finishing quality, it is not only a technical masterpiece but also an aesthetic treasure.

This is on the wrist of Greubel Forsey CEO Antonio Calce:

With a love for outstanding and avant-garde replica GMT watches such as the GMT Quadruple Tourbillon and the GMT Sport, the pair of watchmakers dedicated their new movement to the “globe” in the center of the dial, Greubel Forsey Describe it as a “globe”. An “open air theatre”. There’s certainly a lot to see beneath the iconic convex sapphire crystal, as this globe beautifully depicts the Earth’s 24-hour constant rotation, just as it would in reality. It consists of three rings indicating two complementary times: hours and minutes of local time and universal time.

The 24 time zones displaying universal time will be set to a black background if the time displayed is nighttime, and a white background during the day. The local time is displayed on two outer rings: one shows the hours on a gray satin-brushed outer ring and the minutes on a thin black outer ring. Each time indication has its own hand with a red triangular tip filled with luminous material. The hands are attached to two additional rings engraved with Atelier’s cherished keyword to indicate GMT. Finally, an off-center display at 10 o’clock indicates the second time zone with a blue-gold hand.

The beating heart of this timepiece is made of titanium and measures an impressive 43.5 mm in diameter, as well as awe-inspiring. Greubel Forsey once again wows with its craftsmanship. The 30° tilted balance wheel appears to be suspended in mid-air and is secured to a polished steel column by a beautiful black polished and barrel-shaped polished steel balance bridge. On the right is a small seconds dial with blue-gold hands, making the whole thing more complete.

The titanium bridge on the case back is hand-polished with a steel brush to give it a matte texture, a first for Greubel Forsey. The delicate surface catches the light and beautifully highlights the globe. high quality replica watches

zelin0802 / August 17, 2023

Greubel Forsey Tourbillon 24 Secondes Vision Now Available In Platinum

Introduced in 2015, the Greubel Forsey Tourbillon 24 Secondes Vision embodies the brand’s vision (pun intended) of a pure, clean watch that doesn’t overstate its noble origins but tells time discreetly , small seconds and hands. tourbillon. All of this is packaged in a very round watch (uncommon for the brand), and, moreover, it’s as simple as Greubel Forsey. Still, turn it back and you’ll see an incredible level of machining and a fast-spinning tourbillon. The Greubel Forsey Tourbillon 24 Seconds Vision will be launching in a new version at SIHH 2017 and will now be available in 4 dial options including the very attractive Salmon version at the top of this article.

The Greubel Forsey Tourbillon 24 Secondes Vision has been the brand’s “entry-level” product for a year – as long as we can put those words next to Greubel Forsey’s name – at the brand’s launch debut A tourbillon-free watch from the previous year, signed 1. So really, this “Vision” is still the brand’s approachable tourbillon watch. The goal when this watch was launched was to create a more approachable product, not necessarily in terms of price but in terms of style and wearability. Typically, the case of a Greubel Forsey watch may need to protrude asymmetrically here or there to accommodate a tourbillon or four, and perhaps even a miniature globe. Their dials are the display windows for various complications and unusual layouts, but these greatly influence the appearance of these watches. Not so with the 24-second Vision Tourbillon. Shopping fashion watches

This “vision” is indeed sober and restrained, and of course a sense of beauty. Its slender silhouette and perfectly round case embody its classic shape, a pure horological feast, as is the brand’s tradition. There’s an action inside that makes you change your mind about the concept of completion. Forget what some people call handmade, this watch is truly handcrafted and handdecorated. The movement is equipped with a 24-second tilting tourbillon, which actually poses a problem since the Vision is also aimed to be thinner. The solution is on the back: the tourbillon is wrapped in hemispherical sapphires – click here for more details.

At SIHH 2017, the Greubel Forsey Tourbillon 24 Secondes Vision will be available in a platinum case (white and red gold only) and 4 new dials: salmon-colored with blue, blue gold hour-markers Brown with white appliquéd gold hour-markers, brown with white appliquéd gold hour-markers, and finally anthracite black with engraved and lacquered enamel hour-markers (just like the first edition in white gold). All straps match the color of the dial. The hands are made of hand-polished stainless steel, with the hands of the Salmon version having a blue finish. This “quartet” of best luxury watches is a new situation for the brand, as each Greubel Forsey watch is usually only available in a platinum case.

zelin0802 / June 21, 2023

Greubel Forsey Tourbillon 24 Secondes Architecture

Three-dimensional, intricate and impressive.

The hallmark of the exclusive watchmaking brand of Greubel Forsey fake is its inclined high-speed tourbillon, which completes two and a half revolutions per minute. In fact, it was the first tourbillon Greubel Forsey (GF) launched when the brand debuted in 2004.

Nearly two decades on, the brand’s typical regulator has been fitted in a completely different place than the tourbillon’s 24-second architecture. Although the tilted tourbillon is retained, the Architecture as a watch is almost new, including a completely new case design containing a rebuilt movement – the physical realization of the building – which together form a cohesive overall.

At first glance, the Architecture appears to be just another GF sports watch, so one might assume it’s just a modified movement modified to fit the case of the brand’s best-selling sports watch. But not only that.

The tilted tourbillon has been transformed into something refreshingly new where the whole is greater than the sum of its parts. Even though high-end sports best replica watch site are becoming more common, they’re still pretty new. In short, it is one of the most famous watches in the GF series.

While the tourbillon’s mechanics are familiar, the details of the movement have been completely reimagined to emphasize the brand’s unique approach to movement construction, which values three-dimensionality and impeccable finishing in design.

This incremental improvement upon the original tilting tourbillon movement was crucial to distinguishing the Architecture from all its predecessors. In fact, Architecture is arguably the most impressive version of the movement to date, a quality that is especially apparent when looking at the watch up close.

One of the defining features of the architecture is the design of the movement and case, which, like GF’s other sports watches, is ultra-modern, but with increased depth of field, the visual experience goes a step further. In short, more movement is visible from every angle than before.

To achieve this, the movement has been completely skeletonized, with many key components deliberately elevated, creating a sense of depth while providing a spectacular profile view through the middle of the sapphire case. Like many GF watches, the Architecture is quite chunky, but it utilizes all the height for maximum visual impact.

Importantly – and this is a Greubel Forsey after all – the finishing of the movement is excellent. The first-class decoration multiplies the appeal of a beautifully constructed movement. The exaggerated structural bridges are a highlight: each one is mirror-polished on both flat and slightly curved surfaces. fake watches for men

To accommodate all of this, the case had to be huge, nearly 17mm tall, with a bezel measuring 45mm in diameter. But like other sports watches from GF, the cleverly designed case minimizes the size of the watch. It still looks big on the wrist, but it’s not bulky and bulky.

The streamlined design also has surprisingly good ergonomics for a watch of this size. The case is slightly curved, and the strap blends into the short lugs, so it fits well even on smaller watches. That said, there’s a downside here: the Double Fold does feel bulky, and it’s not as sleek as the watch itself.

building exterior
Oversized and sleek, the curvaceous case resembles early GF sports models from a distance, but becomes instantly distinctive when viewed from the side. The lugs and sides have been extensively reworked to set it apart from the standard sports case. The result is a case that blends the concept of a sports watch with the mechanical theme of an exposed movement.

The Architecture case is unorthodox in all respects. In fact, it’s more accurately described as a clear sapphire ring sandwiched between the titanium bezel and caseback. The lugs are “floating” – they are placed a negligible distance from the sapphire ring and are integrally formed with the case back.

While the brand has previously used sapphire windows on its cases, the Architecture’s sapphire windows encapsulate the perimeter of the movement and are second only to the Sapphire Double Balancier in terms of transparency among GF watches.

But even the all-sapphire Double Balancier is arguably less interesting compared to the Architecture, whose sapphire case is completely round in the middle. This lets in plenty of light from multiple angles, allowing for a brighter view of the dial components.

Of course, the movement is fully visible from the side, a key perspective for the design, as the movement was developed from the ground up to look tall, roomy and architectural. In fact, the view from the side of the case resembles a densely built cityscape, but is even more impressive in miniature.

In principle, the most important aperture is located at six o’clock, revealing the high-speed tourbillon inside. Thanks to the tall case, the tourbillon can be admired even on the wrist – the view is further enhanced by the abundance of light entering the case, causing the frame’s polished bevels to subtly shimmer as it makes its 24-second rotation. Add to that the tilting balance and tourbillon, and it sure is fun to watch.

But there is an opinion that the power-reserve mechanism visible at two o’clock is equally intriguing – more on this below.

To further emphasize the complexity of the case, the bezel and front crystal are not flat and round like traditional watches. Instead, they resemble a saddle, with the double curvature and oval shape that has become a hallmark of GF sports watches.

First seen on the GMT Sport, the curved ellipse has been architecturally refined to make it less pronounced, resulting in a well-proportioned aesthetic that is pleasing to the eye, while still allowing plenty of light to hit the skeletonized dial.

In typical GF fashion, the inner steps of the bezel are laser-engraved with the central theme of the brand philosophy, although more discreetly than on past few models due to the smaller text size – there are only nine words on the bezel – arguably A step in the right direction.

As impressive as this case is, perhaps one criticism can be made: the bezel is attached to the case back via screws that are fastened to the inside wall of the case. These screws are clearly visible through sapphire windows on the sides of the case, creating a slight distraction when viewing the more important components inside.

Thanks to the streamlined design of the case, the lugs are integrated into the design. They are specially designed to showcase the strong lines that define the case. Although not connected to the case middle, the lugs blend almost seamlessly into the case.

The Architecture’s lugs are more intricate in design and finish than GF’s past watches. The tops of the lugs are noticeably flat with a brushed finish that contrasts with the curved, polished sides. The flat top surfaces of the lugs are finished with mirrored bevels, which are mechanical and aggressive, while their sides provide a smooth and organic look.

The sides of each lug are grooved to create a deep polished channel flanked by brushed bezels – a nice combination since the mirror surface is less noticeable due to its concavity. Although the style of this cheap replica watches is very modern, details such as the lugs recall the smooth lines of 1930s racing cars.

Best of all, the lugs are ergonomically designed so they slope down towards the strap.

The buckle also contributes to abrasion resistance. The one-piece case is complemented by an equally chunky folding clasp, similar to those found on other GF watches, and looks bland in comparison to the delicate and intricate case. While the buckle is impeccably crafted, it is not as streamlined as the case.

Architecture doesn’t have a bracelet yet, but I’m sure there will be, just like other GF sports watches. A typical GF titanium bracelet costs around $40,000, which will be an expensive option, but will certainly enhance the smooth lines of the case.

deconstruction movement
While the case construction is impressive, the movement is undoubtedly the most tangible expression of the GF philosophy.

Architecture’s movement is familiar at first glance, and for good reason, as it is one of many variations on the base movement. But each variant rearranges the gear train to suit each model’s overall aesthetic.

It’s worth noting that its closest relative is the Twin Tourbillon Technology, which has many similar elements, but as the name suggests, the Double Tourbillon Technology has a more complex biaxial tourbillon and more mainsprings, four to be exact , not three in the schema.

GF movements are often unconventional and often asymmetrical in layout, reflecting the design philosophy. So every caliber is pretty much a little horological puzzle piece when it comes to understanding the basics of the movement.

That said, most of GF’s movements are largely traditional at their core, so they can be figured out after thought, as was the case with Architecture. Knowing the function of the architecture does demystify its intricate exterior, which may take away some of its esoteric charm, but it doesn’t take away from the fact that the movement is a visual treat.

At the heart of the architecture is a simple transmission system that begins with the barrel and progresses to the second and third wheels that drive the tourbillon cage.

Additionally, the third wheel drives an auxiliary pinion that powers the seconds hand visible on the dial side. One notable quirk is that the gear ratio between the third wheel and the tourbillon cage is 2.5 times the gear ratio between the third wheel and the pinion, which explains the fact that the tourbillon cage rotates once every 24 seconds (because 60 seconds divided by 2.5 equals 24 ).

Stabilizer
The tourbillon itself is a traditional design of the brand and can be found on other GF watches with the same tourbillon, such as the Tourbillon 24 Seconds Vision. It rotates the balance wheel at an inclination of 25° to the horizontal every 24 seconds.

Theoretically, the inclination allows the balance wheel to occupy more positions sequentially in three-dimensional space, which further averages the positional errors caused by gravity compared to traditional tourbillons, which are designed to constantly move in a fixed vertical position. Rotating balance wheel. Timekeeping accuracy, however, is more of an academic exercise than a practical need in the realm of six-figure watches like this one.

Made of lightweight titanium, the tourbillon cage is slim and shaped like a tuning fork, further reducing weight. The two-prong end on one side of the cage is balanced – it adds a little mass to balance the weight of the escape wheel and pallet fork on the other end.

An interesting detail that only a true nerd will appreciate can be found in the tourbillon. Like all types of tourbillons, it has a fixed wheel that acts as a hub to rotate the escape wheel as it is dragged by the tourbillon cage.

But since it is a tilted tourbillon and the fixed wheel is parallel to the plane of the movement, both the fixed wheel and the escape wheel pinion need to have their teeth cut at an unconventional inclination, which is very rare in watchmaking.

The top of the tourbillon cage is ruled and the edges are bevelled. It’s done in the typical fashion of other GF models with the same 24-second tourbillon. This means that it is not as elaborate as the higher-end double tourbillons, which have black polish, rounded arms and sharp corners within the chamfers.

One nitpick here is that the tourbillon is simpler than the brand’s flagship Bi-Axis Tourbillon, which is not only more mechanically complex but also has a more sophisticated finish. But a 24-second tourbillon might be a better fit for a sports watch, especially one as busy as Architecture. In this case, less is more, as the simpler tourbillon does distract from too many other visible moving parts, of which there are many. Of course, the high-speed nature of the 24-second tourbillon and the stability it brings fit the concept of a sports watch.

arches, arches, all around
This is probably because the architecture is not just about the tourbillon, but the architecture of the movement as embodied by the five black polished titanium bridges that support the main components.

At first glance, the bridges appear to be arranged randomly, a paradoxical tribute to traditional watchmaking craftsmanship. Their placement is reminiscent of a traditional pocket watch movement, where the bridges are attached to the base plate at seemingly arbitrary angles.

This seemingly chaotic layout, with all the bridges at different angles, ironically produces a coherent aesthetic, a feat few brands are able to achieve.

The finishing of all components enhances the coherence of the design. In terms of the grandeur of the decoration, it is clear that every detail has been carefully conceived, and it does not seem to be added at all.

However, the architecture goes beyond the usual high level of finishing for which GF is known. The degree of completion of the arched bridge is very high.

Each arch is complexly curved but still presents clear, uniform angles along its edges, neither breaking curvature nor showing any sign of unevenness. Each bridge plate is impressively finely balanced, avoiding looking bland or overly polished to the point of overly rounded.

Despite the complex visuals on the front, the time is still indicated in the traditional way by the central hour and minute hands. However, the hands are elevated by an impressively high tripod, allowing them to climb over numerous raised components. reviewluxurystore.com

Since the hands are raised, a slim pinion is required. This in turn necessitates the jewel bearings visible inside the tripod to minimize additional friction on the protruding pinion.

Of course, the tripod itself is well-made—it has a fine-brushed surface, while many of the edges have neatly rounded bevels.

While most of the movement is visible on the dial, this in turn means that certain components are inevitably hidden. The keyless mechanism and intermediate wheel are located deep in the movement, below the power reserve mechanism. In other words, they’re located under the motherboard on the back.

Full size “difference”
Besides the arched bridges and the tripods for the hands, another architectural highlight of the Architecture – no pun intended – is the exposed power reserve. While traditional in terms of mechanics, the skeletonized dial exposes the details of the mechanism, allowing the wearer to enjoy a distinct interaction with the movement as it is wound.

Of particular note is the use of a full-size spherical differential, which consists of a spider gear and vertical planetary gears sandwiched between two sun gears.

This type of differential is also found in other GF movements with a power reserve display, and is similar to the differential in a car gearbox, but its size means that it is only used in watches that can accommodate thickness. In contrast, traditional power reserve mechanisms used in thinner watches use flat planetary gears, which are less visually interesting, but are usually hidden under the dial anyway.

The spherical differential in this architecture is large and visually impressive, and can be seen in action through a sapphire window next to the crown – turning as the barrel is wound.

The exposed mechanism makes it easy to understand. The star gear measures the difference in rotation between the two sun gears; this difference turns the pinion, which in turn turns the power reserve indicator, which is a rack with a small red arrow on the edge for Indicates the state of the wind.

The upper sun gear, driven by the winding train, is visible from the dial side, below the differential. Therefore, when turning the crown to wind the watch, the wearer will enjoy a vivid sight-the winding wheel, barrel, star gear and power storage rack rotate in synchronization.

At the same time, the sun gear below is constantly driven by the moving train. Unfortunately, the sun wheel is hidden by the mainspring, but with the mainspring unwinding, the sun wheel rotates so slowly that it is not a priority from an aesthetic point of view.

It is worth noting that the GF Double Tourbillon 30° technology in ceramic has a similar mechanism, with transparent sapphire bridges to fully reveal the movement wheel train.

geometric landscape
The motherboard visible from the back may appear sparse compared to the intricate front, but each element is still impressive.

Of particular interest is the lower pivot of the differential mounted on an elaborate tripod, similar to the one that supports the pointer. It’s equally well made, right down to the chamfered edges and grooves on the screw heads. There is also a sleeve in the center of the tripod that holds the jewel of the differential pivot. The rhinestones are a completely unnecessary addition that is both aesthetically pleasing and highlights the mechanical function of the bridge.

But unlike a hand tripod, this is functionally redundant; a simpler bridge or an enclosed sports board would do exactly the same. However, it is this finely crafted finish and look that is where GF movements are appreciated. At the same time, the three-legged bridge highlights the importance of the often overlooked differential mechanism.

One criticism is that the motherboard looks too clean, as if it is the result of a purely industrial process, without manual work. Take, for example, the conical sloping walls around the differential tripod—they’re clearly the product of CNC machining, albeit with great skill, since it’s more challenging to cleanly machine a circular surface than a flat vertical surface.

But the motherboard is not just modern machining, as there is obviously a lot of hand finishing. Notably, many of its edges present fine rounded corners, which are not particularly wide due to the thinness of the sheet, but executed to the highest level and with incredible uniformity.

It also helps that the motherboard is finely frosted in typical GF style, rather than the sporty Cotes de Geneve. The clean look of the matte surface complements the angles nicely and emphasizes its mirror-polished character. In terms of color contrast, the gold sleeve inlaid with rubies breaks the monochromatic monotony of the splint and splint.

The complex geometry of the bridge is actually the point of the building – it is all about mechanical form rather than function, yet tastefully done with an impeccable and refined quality. www.review4uwatch.com

As an example of this quality, it is worth noting the bridge of the lower pivot of the tourbillon. While it would be easier to close the board as a whole, the architecture opts for an elaborate approach, almost to the point of excess.

The bridge supporting the underside of the tourbillon cage is a large concentric frosted ring with ‘A’ shaped arms to support the pivot. There is also a jewel-encrusted socket on the rim of the ring for the pinion of the third wheel. Of course, all of its edges are uniformly angled, with plenty of inward and outward angles.

Less obvious but equally admirable is the intricately machined form of the main plate surrounding the ring. It has an intricately sculpted profile reminiscent of the cast metal casings of industrial gearboxes, such as those one might see on larger ships. But, of course, this is done on a very small scale and with complex finishing. The surface is finely ground, free from the machining marks that inevitably result from milling curved profiles, especially at this size.

The same can be observed in the area above the keyless piece, a myriad of planes inclined at different angles with curved edges, providing an intriguing aesthetic that further emphasizes the asymmetrical design.

All in all, the architectural movement presents a surprising combination of elements that appear casual and industrial, but on closer inspection it reveals the refined, impeccable finishes expected of the brand. The result is coherent and reflects the theme and style of the watch. In short, the design is more modern than GF’s earlier movements, but the execution is just as good.

If it wasn’t obvious by now, this watch will now be seen as another attempt at a high-end sports watch. The architecture is a classic example of good design, the result of which is that the whole is greater than the sum of its parts. Many of its constituent elements are clearly borrowed from GF’s past, but the watch feels satisfying.

While the tourbillon inside is not the most advanced type GF has ever made, the overall crafting of the movement is certainly one of the most refined to date. The building is a watch in which one should enjoy the forest, not the trees, but paradoxically, the necessary level of enjoyment can only be achieved through the impeccable individual components that few others have accomplished so successfully. top replica watch

Greubel Forsey Tourbillon 24 Seconds Architecture

Diameter: 47.05 mm (case) and 45 mm (bezel)
Height: 16.8mm
Material: Titanium and Sapphire
Crystal glass: Sapphire
Water resistance: 50 meters

Movement: 24-second tourbillon architecture
Functions: Hours, minutes, seconds, power reserve indicator and tourbillon
Frequency: 21,600 beats per hour (3 Hz)
Winding: manual winding
Power reserve: 90 hours

Strap: Rubber strap with titanium folding clasp

zelin0802 / July 25, 2022

Greubel Forsey GMT Sport Titanium

Back in 2015, the GMT Black paved the way for the GMT Sport. Building on this, Robert Greubel and Stephen Forsey invented and launched a lightweight and ultra-strong profiled titanium case with an oval bezel and integrated lugs , to showcase the new movement. The new case looks perfectly round from above, while showing off the prominent arches and ovals from other angles. Thanks to the unique functional form, the integrated lugs and strap fit perfectly on any wrist. Greubel Forsey values ​​are engraved on the outer ring of the satin bezel in relief. Arched bridges and sloping gear trains showcase the new movement architecture.

The focus of the sporty GMT Sport is legibility and efficiency. Hours and minutes are indicated by concentric skeletonized hands whose curvilinear contours follow the curvature of the case and movement. The gear train is mounted on a suspended arched central bridge with black treated openings, following the curve of the bridge, overlooking the globe to drive the hour and minute hands. The triangular tips of the arrow-shaped hands and the markers on the minute ring are coated with a luminous coating. The subdial between 10 and 11 o’clock combines the small seconds on a large rotating disc and a second time zone display with hands. The 72-hour power reserve (guaranteed by two coaxial barrels in series) is shown on a sector at 3 o’clock, with its skeletonized hands and a highlighted red triangle. The power-reserve differential under the arched bridges is subtly engraved with Greubel Forsey values.

The 24-second tourbillon is located at 1 o’clock, and its unique and highly polished tourbillon bridge has a black-finish opening. Already the third fundamental invention of Greubel Forsey in the field of tourbillons (after the 30° double and quadruple tourbillons), its cage is inclined at 25° and can complete a full revolution in 24 hours. The higher speed combined with the innovative frame inclination significantly improves the timekeeping performance of the single tourbillon system.

Back in 2011, Greubel Forsey fake introduced the remarkable GMT mechanism. In this dual-patented mechanism, the second time zone display between 10 and 11 o’clock on the secondary dial combines with the universal time display to visually read the current time anywhere in the world. The spectacular sight of the Earth Rotating Globe completes each full counterclockwise rotation in 24 hours. It is surrounded by a sapphire crystal ring with a 24-hour index. Thus, the wearer can read local time at all longitudes, including day/night indicators. On the back side of the GMT Sport, the outer and central rings form the sapphire city disc, providing UTC Universal Time and Daylight Saving Time for 24 cities in the main time zones. The disc distinguishes between time zones where daylight saving time is applied and time zones where daylight saving time is not applied. The GMT functions are controlled by two buttons located on the left side of the case.

The new GMT Sport is available as a limited edition with a black or blue rubber strap. A titanium folding clasp enhances the comfort and ergonomics of this exceptional Greubel Forsey replica watches online.

zelin0802 / July 7, 2022

24 hours later: Greubel Forsey’s Tourbillon 24-Second Architecture

Greubel Forsey has achieved many exciting developments. So, today, Watchonista takes a look at the independent watchmaker’s latest creation: the Tourbillon 24-Second Architecture.

Switzerland-based La Chaux-de-Fonds Greubel Forsey has long been a favorite of discerning collectors. Since the appointment of CEO Antonio Calce last year, the brand has undergone significant changes in producing, marketing, pricing and distributing its unique and well-crafted timepieces.

While we can’t say for sure that Greubel Forsey’s latest release of the Tourbillon 24-Second Architecture is the result of this influx of energy, it does help bring a well-deserved spotlight to this dynamic creation.

superstructure
As the name suggests, the Tourbillon 24-Second Architecture is the structure.

Greubel Forsey is famous for its tourbillons, especially those with tilt and multi-axis escapements. And since the creation of the independent brand in 2004 by Robert Greubel and Stephen Forsey, the duo have invented and perfected a whole new generation of tourbillons (namely Tourbillon 24 Secondes, Double Tourbillon 30° and Quadruple Tourbillon).

The brand has also explored new horizons in the fields of energy, space and nanotechnology. For example, the Double Balancier Convex, released in March of this year, features two unique inventions: the two balance wheels are separated and tilted 30 degrees, while being connected by only one constant spherical differential, giving the mechanism a constant power distribution. Therefore, the watch guarantees precision and a 72-hour power reserve.

But as far as the tourbillon 24-second architecture is concerned, the brand wants to move completely away from traditional tourbillon engineering. Thus, the brand’s latest asymmetrically arranged movement consists of 354 parts. These include polished titanium bridges on top of the main plate with a matte finish, an anti-gravity escapement tilted by 25°, a fast-turning barrel (in total, the watch vibrates at 21,600 vibrations per hour), and more.

View Room
Of course, when you have such a complex and beautifully assembled watch movement, you (naturally) want to show it off. Therefore, the Tourbillon 24 Secondes Architecture is equipped with a large synthetic sapphire crystal ring that surrounds the entire perimeter of the case.

Greubel Forsey luxury has integrated lateral sapphire crystal windows as early as 2007. But the brand has never featured a visible movement above, below, and at nearly every angle of the case. Additionally, the synthetic sapphire crystal caseback provides another window into the mechanism.

These details give the wearer an unobstructed view of the movement, where they can observe almost 354 individual parts of the movement.

The tourbillon 24-second architecture is also attractive. Thanks to its titanium construction and gorgeous lines, it is very comfortable to wear on the wrist. In addition, the variable geometry bezel and caseback feature raised engraved text for a tactile experience.

While the titanium case looks very rounded when viewed from the dial side, its convex shape becomes apparent from other angles. Convex cases are still relatively uncommon in watch design, but I’ve gotten a little fascinated by them lately. These surfaces add extra visual fluidity to the silhouette. As far as the tourbillon 24-second architecture is concerned, this power is the perfect complement to the dynamic movement of the tourbillon movement.

tell the time
Greubel Forsey calls this mens replica watch the “city on the wrist”, an apt description, as the infrastructure, engineering and decorative elements of the Tourbillon 24-Second Architecture are organically combined to form a whole.

However, despite all the intricacies and craftsmanship involved in making the 24-second tourbillon architecture, at its heart is a watch you can wear every day.

For the sake of precision, the movement of the tourbillon 24-second architecture rests on a spherical skeleton bridge. At the same time, the escapement adopts a fast rotation speed and a 25° inclination to ensure excellent timekeeping performance, especially in a stable position, with a power reserve of more than 90 hours.

To enhance performance, the watch features two easy-to-read steel hands that are large, curved, skeletonized and polished to indicate the hours and minutes.

Additionally, the power reserve indicator is a moving red triangle floating on a conical disc at 3 o’clock.

Finally, it comes with a rubber strap secured by a titanium folding clasp and engraved with the GF logo.