The Grande and Petite Sonnerie have a special place in the world of Haute Horlogerie. Only a handful of watchmakers are able to manufacture (and present in their catalogs) such works of art, often regarded as the pinnacle of complex watchmaking. Robert Greubel and Stephen Forsey had been thinking about this major move for years, beginning an 11-year research and development effort that culminated in their own interpretation of the complication, which A “self-contained” creation is undoubtedly one of the highlights of SIHH 2017.
The Grande Sonnerie is one of the most complex watch mechanisms (for more on chiming watches, read our Technical Viewpoint). Both the grande sonnerie and the petite sonnerie strike the time and quarters at the same time, but only the grande sonnerie repeats the time every quarter of an hour. Not surprisingly, Greubel Forsey’s interpretation of this complication – the dynamic duo’s first striking watch – is unlike any other in the history of horology: it is a A masterpiece, with a super-complex movement composed of 855 parts (with several noteworthy innovations), first-class craftsmanship, excellent acoustics and unparalleled Greubel Forsey style.
The GreubelFors Grande Sonnerie is equipped with mode selectors GS (Grand Sonnerie), PS (Small Sonnerie) and SL (Silent), all operated by a pusher at 4 o’clock. It is also a minute repeater, able to tell the time by pressing a button in the crown. In such mechanisms, the management of functionality and power is crucial so that all parts can interact simultaneously and tell the time perfectly, while managing energy consumption. The movement is powered by two energy sources: the first energy source is used for the chronograph part of the movement, with two coaxial series quick-rotating barrels (one of which has a sliding spring – 72 hours power reserve).
Although the Review fashion watch is water resistant to 30m, the sound quality of the chime is excellent, loud and pure. The case is made of titanium, which has good resonance properties. The hammer strikes the steel gong of the cathedral. The silent governor eliminates any unsightly background noise. The chimes are optimized without pauses, eliminating the usually perceptible tiny silence between the chimes of the hours and minutes.
Another notable and useful feat is the addition of 11 safety features. For example, when the timekeeping is in progress, the time setting is disconnected, and the timekeeping cannot be sounded during the time setting. In fact, striking watches need to be handled with care, as improper handling can damage the movement… and repairing such a mechanism is a long and complicated process (the assembly of the movement takes months)!
To enhance the timekeeping performance of the watch, Greubel Forsey added a 24-second tilting tourbillon to its impressive Grande Sonnerie. Of course, it’s up to the standard you’d expect from a brand: 86 perfectly handcrafted parts, weighing just 0.37 grams in total, light alloy cage struts, titanium cage bridges, gold counterweights, variable inertia pendulum with gold screws Wheel, hairspring with Philips terminal curve and Geneva-style studs…running at 21,600 vibrations/hour, inclined at 25° angle, and making one revolution every 24 seconds.
In traditional luxury Greubel Forsey style, the multi-layered black dial shows the hours and minutes by the brand’s skeletonized gold hands with arrow-shaped luminous tips. All applied indicators/markers are gold. Around the dial, small seconds at 6.30, chronograph power reserve at 5, chiming power reserve at 2 and chime mode selector at 3. The hollow position allows easy observation of the hammer and gong.
Despite its mechanical complexity, the watch is enduring because Greubel Forsey housed all 855 parts of the movement in its signature asymmetrical case measuring 43.5 mm in diameter and 16.13 mm high (relatively compact) middle. Crafted in titanium, it features a hand-finished case and a side window that reveals the tourbillon and steel cathedral gongs.
As always, the movement finishing is top notch. Bridge in nickel silver, brushed with embossed inscriptions, micro-rotor in black finish (also with embossed inscriptions), black-polished hammers, olive dome jewel set in gold-tone rhinestones.
The Greubel Forsey Grande Sonnerie is fitted with a black hand-stitched alligator strap secured by a titanium folding clasp. wholesale watches replica
Technical specifications of the Greubel Forsey Grande Sonnerie
Case: 43.5mm x 16.13mm – Titanium – Front and back sapphire crystal – Sapphire side windows – 30m water resistance Movement: 36.40 mm x 11.13 mm – Manual winding – 72 hours power reserve – 21,600 vibrations/hour – 85 jewels – Hours, minutes, small seconds, small sonnerie, minute repeater, chime mode selection, tilting tourbillon 24 Seconds, movement power reserve indicator, chiming power reserve indicator. Strap: Hand-stitched alligator leather with titanium folding clasp
The Swiss high-end watchmaker has absolutely nothing to hide – and this new case design proves it.
The headquarters and seat of fake Greubel Forsey in La Chaux-de-Fonds is one of the most fascinating buildings in the entire Swiss watch industry. The centerpiece of the facility is a 17th-century farmhouse, purchased in 2007 by company founders Robert Greubel and Stephen Forsey. Throughout the late 2000s and early 2010s, the duo worked gradually to expand the building into its current form, which features a tall modernist glass-walled studio swelling from the side of the once quaint log home.
When I visited Greubel Forsey’s manufacturing plant a few years ago, I was amazed to see how differently the two parts of the building were designed. On one side you have all the modern finishes of a contemporary high end watchmaker, clean rooms and on the other side a beautifully restored original 300 year old farmhouse. Watchmakers, craftsmen, and administrative and marketing staff mingle between the two parts of the building throughout the day at zero intervals, even if half the walls of their workspaces might bring you splinters.
The choice to create this building was deliberate, to highlight the two worlds that Greubel Forsey timepieces occupy. The company’s traditional approach to decoration emphasizes old world craftsmanship and craftsmanship – Philippe Dufour is a fan – and then the watch engineering part, and no one in the Swiss watch world has been as avant-garde and progressive as Greubel Forsey this century. These two aspects have always distinguished Greubel Forsey’s watches, and they are clearly reflected in the architecture of Greubel Forsey’s home.
Luckily, Greubel Forsey has re-emphasized architecture in today’s release of the 24-second tourbillon, a new timepiece that opens up a whole new type of case design for the company, as well as a new movement, even if it may have some familiar element.
What’s new at Greubel Forsey? The Tourbillon 24-Seconds Architecture represents the dawn of a new era for Greubel Forsey, which has gradually taken hold over the past 18 months since the appointment of new CEO Antonio Calce. During that time, we’ve seen the company make some small strategic shifts and structural changes, many of which are reflected in today’s new release.
One of Greubel Forsey’s biggest news so far this year, for example, has been the successful buyback of all outside holdings, including the 20% that Richemont acquired back in 2006. As of today, ownership of the company is split between founders Robert Greubel and Stephen Forsey, and new CEO Calce.
Other notable moves include the decision to use only plant-based straps, rather than exotic leather, on the new Greubel Forsey watches. The company has also made a noticeable shift away from newly released precious metals to focus on building its newly identified “Convexe Collection” with lightweight titanium. Another achievement is the company’s desire to produce more watches each year—Greubel Forsey plans to reach 200 for the first time in 2022.
Tourbillon 24 Seconds is an open book In many respects, the 24-second tourbillon architecture represents the realization of Greubel Forsey’s new aesthetic basis, which was not possible just a few short years ago. Looking at the case itself, it features a titanium chassis with numerous sapphire crystal inserts that act as windows to the movement. Greubel Forsey had previously experimented with separate small sapphire crystal windows in the cases of various watches in 2007, but the tourbillon 24-second architecture was the first time the entire periphery of the watch was so exposed (outside, well, in a full sapphire crystal case), allowing visibility and light to enter the movement from all angles.
When I saw this fake watches at discount in person a few weeks ago, I was particularly attracted by the sapphire crystal window at six o’clock in the case, which is located between the new three-dimensional “variable geometry” lug design, making it unprecedented. Continuously observe the high-speed operation of Gooper’s unique 24-second tourbillon from a different angle.
The case is much more complex than simply combining titanium and sapphire crystal into one design. Greubel Forsey describes the case shape as a “frustum of cone”, which is a delicate way of AP geometry to mean that it is shaped like a hollow cone with no tip, like a lampshade. The convex profile was developed to enhance the ergonomic wrist feel of this model, but the real fun comes when you open the calipers and start measuring the watch. Because the case of the tourbillon 24-second mechanism is so dramatically inverted, the measured diameter of the caseback itself is almost two millimeters (47.05mm) larger than the measured bezel width alone (45mm). One of the benefits of this design is that not only is the watch comfortable to wear (and lightweight, thanks to the use of titanium), but it also looks more compact on the wrist than you might think (the watch is 16.8mm thick at its farthest point). Thankfully, unlike some previous examples like the Tourbillon 24 Secondes, the tourbillon doesn’t have a spherical window into which to slot into your arm.
Before delving into the movement, I want to point out some other aesthetic differences of the 24-second tourbillon architecture. Most notably, Greubel Forsey has introduced a new typeface for its characteristic ‘brand values’, which are usually listed and embossed on places like the rotor, case or case back of the brand’s watches. Instead of the basic sans-serif typeface the company has used in the past, the Tourbillon 24-Seconds architecture uses a font clearly inspired by the world of science fiction, an appropriate choice for such an unorthodox watch design.
Greubel Forsey also appears to have adjusted the motto for the new watches, favoring a shorter single word on the watch’s inner bezel. As far as I know, innovation, passion, and science are all new additions to the listed values, but I can’t lie, I always get a little laugh from lengthy French phrases like Noblesse Esthétique and Oeuvre Unique on Greubel’s Forsey’s watch . I’ll also say that while I think the new Blade Runner-style font fits perfectly with the futuristic aesthetic of the Tourbillon 24-second architecture, I hope they have options for future applications because I can’t imagine it going with the Every future version of Greubel Forsey works together. (It does, however, complement the dense phobia-inducing motifs on the front and back of the mainspring barrel.)
The movement and dial of the tourbillon 24-second architecture are the same. For all intents and purposes, there are no dials on the watch, just the three-dimensional peaks, valleys and structures that frame the movement. Hours and minutes are indicated by a central earpiece in polished steel, bent by hand to fit the sapphire crystal dome above. The hands tell the time via twelve small, luminescent quadrangular components attached to the edge of the inner case. Small sub-dials appear to float on a cylinder near eight o’clock, dominated by a large red triangle that is the running seconds display.
I’m also delighted to see the return of the three-legged support bridge with this new watch, which supports the central earpiece and provides the necessary visual weight to accentuate the contrast between the watch’s main timekeeping capabilities and the fast-spinning tourbillon directly below it. This triple bridge used to carry the central earpiece was once a signature visual element of Greubel Forsey, but over time it has more or less disappeared from the series, with the exception of the Balancier contemporary released today and soon to be discontinued. . However, as with many of Greubel Forsey’s timepieces, the tourbillon is always the main attraction.
speeding and leaning The regulating organ used in the new best price watches is identified by its name: Tourbillon 24 Secondes. First launched in 2007, it was one of the earliest achievements under the Greubel Forsey brand, following the release of the original Double Tourbillon 30° watch in 2004 by Greubel Forsey. (Greubel Forsey) started their brand with that.
As its name suggests, the 24-second tourbillon moves much faster than a normal tourbillon, completing a full revolution every 24 seconds instead of 60. Not only is it fast, the tourbillon mechanism is also slightly tilted, tilted at a constant 25-degree inclination relative to the vertical axis. As we all know, the tourbillon consists of a cage containing the balance, hairspring and escapement, and is constantly rotating to prevent the adverse effects of gravity on isochronism. It was originally developed for pocket watches by Abraham-Louis Breguet more than 220 years ago, so today it is easy to dismiss the tourbillon as a superfluous addition to modern wristwatches. However, Greubel Forsey has always believed that the tourbillon can have a real impact on the precision of the watch. The tourbillon just needs to be adjusted or manipulated in some form or fashion. This is the basic principle on which the company has been built since its inception.
The concept behind the tilting 24-second tourbillon is actually relatively simple. The team at Greubel Forsey determined that by running the tourbillon at a higher speed and at a slight inclination, many of the most prominent problems of changing position of the regulating components could be eliminated. It is true – if the tourbillon is placed at a slight angle, it will not be pushed to the same height as if it were placed vertically or horizontally. By running at a faster speed, any individual tuning component reduces the time spent in positions where gravity can negatively affect speed. (Other watchmakers have experimented with tilting balances and tourbillons over the years, but none have perfected it quite like Greubel Forsey.)
The tourbillon is held at six o’clock by a massive bifurcated titanium bridge that has a beautiful smooth mirror finish with absolutely no harsh lines or angles. Greubel Forsey told me it takes up to 15 hours to hand polish a bridge of this style. A second, larger fork-shaped bridge with the same relaxed polished finish supports the mainspring barrel in the upper left corner of the dial. The way those bridges rise over the rest of the moving parts almost reminds me of pinball bumpers; I can imagine a little metal ball tipping around the rest of the movement. The barrel is hidden behind the cover, but what makes this part of the watch so bulky is the fact that there are a total of three series-coupled barrels stacked underneath,
This leads to the final function of the tourbillon’s 24-second structure, the power-reserve display. Hidden in plain sight, it sits near three o’clock and is supported by its own free-standing titanium slab bridge. The red triangles indicate the remaining operating autonomy on the scale on the lower cone. top quality watches
Every aspect of the tourbillon’s 24-second construction has been intensively and extensively decorated by hand. Those bridges for the tourbillon and mainspring barrel? I have no doubt that someone has spent days polishing titanium to achieve the full finish. The Tourbillon 24 Secondes Architecture is like many Greubel Forsey watches, no matter where you look on the dial, it can be studied and scrutinized with a magnifying glass. I found myself drawn to the dichotomous finish used for the upper right bridge of the watch. The transition from polished black to frosted bridges is unexpectedly dramatic, and I couldn’t help but soak up the details of it all.
Flip the watch over and Greubel Forsey has rendered the back of the movement in his typically simple fashion, except it now has a more futuristic look to better match the rest of the tourbillon’s 24-second architecture. The main visible bridges on this side of the watch are heavily brushed, providing an understated contrast to the veritable horological cityscape on the dial side, but there’s still plenty of magic in the details. I counted at least 18 exterior and interior corners throughout the caseback view.
it’s all about construction The Tourbillon 24 Seconds structure is made up of hundreds of tiny parts and assemblies, each intricately designed, machined and engineered to fit and work together. Their only goal is to represent the passage of time as precisely as possible. How this is achieved is entirely up to the ingenuity of each watchmaker, and many prefer to hide their horological creativity with traditional dials or closed casebacks. Greubel Forsey isn’t afraid to make it all public; they know what’s worth seeing. copy watches for men
Can a watch tell the time anywhere on earth? Well, Greubel Forsey GMT of course
Born for innovation Founded in 2004 by Robert Greubel and Stephen Forsey on the premise that not everything in watchmaking has been invented, Greubel Forsey is known as a watchmaker who is constantly seeking to push the boundaries. 17 years later, GF is one of the best and most respected independent brands in the world.
While brands around the world often claim that their inventions are revolutionary, innovative or just completely new, we often find that this is just sales talk. In an industry rife with recycling designs, recycling mechanisms, and sometimes lacking the need for fresh ideas from the community intoxicated in social media echo chambers, Greubel Forsey is a breath of fresh air. Trying different things and challenging the status quo is what makes this indie game so successful.
Shake the core of the industry Building on the need to accept their previous limitations, we know Greubel Forsey is serious when they say they have created something we have never seen before. So when Greubel Forsey released their latest version of GMT Earth in 2018, the industry pricked up their ears and paid attention to what they created.
While the name GMT is very understated compared to what other watchmakers have named their watches, there is no doubt that it is one of the most complicated watches the brand has ever made. Just looking at the watch face can be tiresome until I get to the complication, which is complex enough to give a brain teaser. Seriously, look at the dial and soak it in. This is the pinnacle of 21st century watchmaking, and for good reason.
Function and Design Starting with the simplest functions, the overall dial layout of the GMT begins with a sapphire dial at 2 o’clock, indicating the hours and minutes in local time, which incorporates a small seconds sub-dial alongside a power reserve indicator. The second time zone is indicated by a red triangular hand at 10 o’clock and is operated by a pusher at 10 o’clock on the case. This completes the more “traditional” complications on this incredible timepiece.
Filling the lower half of the GMT display is the artistry that makes this piece so unique, and where it gets its name. From the 4 o’clock position, we have a 24-second tilting tourbillon. Tourbillons tend to ensure that the tourbillon is never in extreme positions: perfectly vertical or horizontal. Next, we have a 3D model of the Earth we call home (not the watch itself, though that would be beautiful). This model Earth rotates in real time, thus providing a view of universal time, acting as a kind of world timer.
24-second tilting tourbillon at 4 o’clock. The 3D model of the Earth rotates in real time, providing a global view of time.
While not very accurate, using the Earth model, we can calculate the approximate time anywhere in the field of view by drawing a line through the area to the hour ring around the Earth. The ring also provides quick day and night vision by using its two-tone nature, just like a traditional two-tone GMT bezel.
Turning to the case back, the complication continues with a “real” world timer, providing more accurate readings for 24 different cities around the world. By distinguishing between cities that are marked in silver and not marked as black, we can read the time of the listed cities by reading one of the two 24-hour rings, regardless of the time of year – summer or winter–. Sitting next to Universal Time is a sculpted sun, the Greubel Forsey GMT symbol.
Architecture and Aesthetics Finally, pulling our gaze away from the intricacy of the mechanics at the heart of this incredible piece, we can see the beauty of GMT’s construction. The GMT replica watches online is housed in a 45.5mm white gold case, not a traditionally shaped watch. With the 7 o’clock position protruding to accommodate the Earth sitting there, we begin to understand what makes this timepiece unique.
As the brand puts it, its bezel is “engraved with an inscription that encapsulates the key values of Robert Gaupper and Stephen Fauci,” and GMT won’t let your eyes rest for a moment. Rich in visual appeal, otherworldly finishes and a hypnotic duo of a 24-second tourbillon and a rotating model globe, the Greubel Forsey GMT seems to defy logic, but it’s there.
Simply put, Greubel Forsey luxury does not manufacture traditional watches. From the case to the movement, it makes timepieces unlike anything you’ve seen from any other manufacturer. There is some kind of three-dimensional quality present in almost all Greubel Forsey pieces, integrating the movement components into the core design of the respective model, rather than treating the movement as a separate entity and placing it in the case and hiding it up behind the dial. With this in mind, Greubel Forsey’s latest creation is called the Tourbillon 24-Second Architecture, which takes the brand’s iconic three-dimensional design philosophy to a whole new level.
The case of the Greubel Forsey Tourbillon 24 Secondes Architecture perfect replica watches is made of titanium, following what the brand calls a “convex conical truncated case shape,” with a bezel that is smaller in diameter than its base. The diameter of the caseback is 47.05mm, while the conical shape of the case tapers to 45.5mm at the bezel for an overall thickness of 16.8mm. In addition to the sapphire crystal that covers the dial and caseback, the Greubel Forsey Tourbillon 24-Second Architecture features a curved sapphire crystal that extends around the entire periphery of the case, allowing unobstructed views of the movement. In addition to showing the three-dimensional structure of the movement in the most complete way,
Diameter: 47.05mm (strap) and 45mm (bezel) Height: 16.8 mm Material: Titanium and Sapphire Crystal: Sapphire Water resistance: 50 m
Movement: Tourbillon 24-second mechanism Functions: Hours, minutes, seconds, power reserve indicator and tourbillon Frequency: 21,600 windings/hour (3 Hz) : Manual winding Power reserve: 90 hours
Strap: Rubber strap, titanium folding clasp
Like other Greubel Forsey watches, the “dial” of the Tourbillon 24-Second Architecture is not so much a dial in the traditional sense as a display of expertly treated parts of the watch, with a pair of hands mounted in the middle. They come to indicate the time. Surrounding the opening on the side of the dial is a relief engraved with a series of Greubel Forsey values that inspired this creation: Architecture, Harmony, Innovation, Technology, Duplex, Passion, Science, Exclusive, creative. Meanwhile, a large spherical open bridge supports the 25° inclined tourbillon at 6 o’clock. The barrel bridge at 10 o’clock is sculpted from a polished spherical surface and fastened to the engraved, lacquered and circular-grained barrel cover.
Like almost all Greubel Forsey pieces, a flawless movement is seen as an integral part of the watch itself, both in terms of aesthetics and practical design. While the complex case of the Greubel Forsey Tourbillon 24-Second Architecture is impressive in itself, its unique construction has the sole purpose of showcasing the watch’s incredible 354-component movement, the real calibre of the latest version of Greubel Forsey. Party Pieces. The polished titanium bridges complement the matte finish on the main plate, which are arranged in an organic manner designed to mimic the asymmetrical yet harmonious growths found in nature. The hand-wound movement features three coaxial tandem barrels, one of which is equipped with a sliding spring to avoid overstretching, which together provide an ample 90-hour power reserve for the Greubel Forsey Tourbillon 24 Secondes Architecture. Finally, completing the watch is a one-piece black rubber strap with a titanium folding clasp and an engraved Greubel Forsey logo.
As a company that places movements front and center in watches, even the simplest and most traditional Greubel Forsey pieces can be considered highly architectural in their overall design and composition. The new Greubel Forsey Tourbillon 24-Second Architecture takes this aesthetic approach to a whole new level, creating an incredibly dynamic timepiece with a look reminiscent of the interconnected ensembles that can be found in dense metropolises. Shapes, surfaces and light reflections.
Huygens’ invention of the hairspring in 1675 was a milestone in watchmakers’ long pursuit of precision. However, it doesn’t eliminate the problem of gravity, which is detrimental to the timekeeping of the copy watch, especially in a vertical position. To solve this problem, Abraham-Louis Breguet (1747-1823) conceived the idea of mounting the regulating mechanism (spring, balance and escapement) in a rotating frame. By turning around an axis, usually within a minute, the frame brings the “heart” of the watch into different successive positions, thus averaging the timing changes. Birth of the tourbillon (1801).
To further improve timekeeping, Robert Greubel and Stephen Forsey reimagined the tourbillon principle and then developed their first three fundamental inventions: Double Tourbillon 30° (2004), Quadruple Tourbillon (2005) and 24-Second Tourbillon (2006).
In their GMT Quadruple Tourbillon, the two watchmakers chose to revisit their second invention and take it a step further by combining it with a multi-time zone display.
Robert Greubel and Stephen Forsey showed inventiveness when they combined their second fundamental invention, the quadruple tourbillon, with their pioneering interpretation of the GMT and its oversized rotating globe. Bold and bold. Displaying three time zones and a universal time function, this remarkable timepiece has a unique three-dimensional architecture crafted with exquisite craftsmanship.
According to the principle that the more different the position of the adjustment mechanism moves, the more precise the timekeeping is, Robert Greubel and Stephen Forsey invented the quadruple tourbillon with spherical differential.
From the initial idea, the concept was clear. While it would be challenging to couple four separate tourbillons, they sought a more compact solution. To save space in all three dimensions, they chose to build the tourbillons in pairs in a unique compact cage system, an extremely challenging feat. Each of these two systems is modeled on a 30° double tourbillon, with the first cage rotating at 30° in one minute, mounted in the second upright cage, and completing a full in four minutes rotate.
The inclination of the inner cage, combined with the different rotational speeds of the two cages, focuses on eliminating timekeeping changes due to the Earth’s gravity when the replica men watch is in all usual positions, especially in the stable position. A spherical differential is used to average the timing of the two autonomous oscillators to improve timing performance, and the system has been awarded two patents.
Having mastered the tourbillon, Robert Greubel and Stephen Forsey continued to research and reinterpret other watch mechanisms, in particular one practical and much appreciated complication: the simultaneous display of multiple time zones. In 2011, two Inventor watchmakers expressed their vision for this modern feature in this groundbreaking timepiece, aptly named GMT, and recently joined by GMT Earth. In this patented system, the second time zone display on the separate sub-dial combines with the universal time display to provide an intuitive world time readout thanks to a world first: an oversized earth completes a full revolution every 24 hours, Follow the planet Earth itself.
In combining the quadruple tourbillon with the GMT mechanism, Greubel Forsey copy not only accomplished a major technical feat, but also created a new hand-wound movement composed of 705 parts, including Three rapidly spinning barrels. Inventor watchmakers also tackled this challenge from an architectural point of view, creating a timepiece that expresses a 3D approach on multiple levels. The main hour/minute dial between 1 and 2 o’clock forms the highest point of the dial, highlighted by the case’s subtle asymmetry, complemented by a 72-hour chronograph power reserve display. The next level is at 4 o’clock, where the coaxial small seconds and the second time zone display are adjustable in one-hour increments via push-buttons. between 8:00 and 9:00,
Lateral windows in the asymmetrical part of the case provide unprecedented views of the equator and the southern hemisphere. The four tourbillons are drawn in two pairs on either side of the blue planet, each with an open and transparent structure, held in place by flat black polished bridges, decorated with gold sleeves and hand-polished bevels and countersinks.
The world time is visible through the case back, with a fixed 24-hour scale marking the day/night zone and a disc with three-letter abbreviations representing 24 cities in different time zones. The disc also distinguishes in light colors the time zones that implement daylight saving time (Daylight Saving Time); and those that don’t (displayed on a dark background). The caseback also offers an opportunity to admire the quadruple tourbillon as well as the frosted bridge with jewels set in a gold sleeve. The two complex asymmetrical convex sapphire crystals that protect the dial and caseback also require a high level of expertise.
This contemporary aesthetic masterpiece is available in a unique version of 66 pieces. The first edition of the 11 models is in white gold and is numbered 01/11 to 11/11 on a plate in the center of the dial.
technical details Model: GMT Quadruple Tourbillon Unique Edition 66 pieces 11 white gold Movement Manual winding movement with 3 patents GMT • Second time zone • Global time and day and night rotating globe • Universal time in 24 time zones • Summer time for city view • Horizontal window showing equator and southern hemisphere • GMT pusher • Quadruple tourbillon • Hours and minutes • Small seconds • Power reserve Diameter: 39.50mm Thickness: 13.00mm number of parts • Movement: 705 parts • Four tourbillon cages: 260 parts • Total frame weight: 2.25 grams • Spherical aberration: 28 parts Number of jewels: 84; olive dome jewels in a gold sleeve Chrono power reserve: 72 hours Barrels: Three fast-rotating barrels connected in series (one revolution in 3.2 hours), one of which is equipped with a sliding spring to avoid excessive tension Balance wheel: variable inertia with platinum averaging time screw (diameter 10.70 mm) Frequency: 21,600 vibrations/hour Balance wheel Hairspring: Phillips end curve; Geneva style stud Motherboard: Nickel silver, matte and speckled, polished bevel and countersunk, ruled sides, nickel palladium finish Bridges: Nickel-silver, matte and speckled, polished chamfered and countersunk, straight-grained sides, nickel-palladium finish; gold plate with individual number engraved; flat black polished gold plate with embossed text, polished bevel and countersunk, straight Grained sides; four flat black polished steel tourbillon bridges, hand-polished chamfers and countersinks, straight grained sides
Internal tourbillon • Tilt 30°, 1 rotation per minute External tourbillon • 1 spin in 4 minutes • Hand-chamfered and hollowed-out cage posts • Each double cage comes with 1 gold weight, individually numbered gear drive • Involute circular profile • Conical gears with profiled teeth
show hours and minutes Small seconds (average performance) 72 hours power reserve, Second time zone Greenwich Mean Time 24 time zones Universal Time Rotating Titanium Ball with Universal Time City Watch Summer Time day and night
case White gold case, asymmetric cabochon synthetic sapphire crystal Diameter: 46.50mm Height: 17.45mm Transparent case back, asymmetric convex synthetic sapphire crystal Side window, profiled synthetic sapphire crystal 3D variable geometry lugs Raised polished engraving “GMT Quadruple” and “Greubel Forsey” on hand-punched background golden security screw Polished bezel with hand-brushed case White gold GMT button with raised engraving on hand-punched background Hand engraved personal number Water resistance: 3 atm – 30 m – 100 feet (Standard NIHS 92-20/SN ISO 22810:2010) Crown: white gold, black lacquered GF logo
dial Multi-layered gold, anthracite Gold hour ring, round grain, polished bevel, black finish golden hour markers gold Power reserve and GMT, hand-finished Small seconds, round grain
pointer Polished Gold Hour and Minutes with Super-LumiNova Small seconds in polished stainless steel, polished stainless steel with black finish Power reserve, hand polished counterbore Second time zone GMT indicator, red
strap Hand-stitched alligator leather White gold folding clasp, hand-engraved GF logo
It takes a lot of confidence to wear a watch that is more expensive than most Ferraris. It takes a lot more confidence to buy and wear a watch like this when it doesn’t have anything about it—except maybe the name—that suggests it’s special. Then again, in the right circles, sometimes a name carries more weight than any public display of wealth, especially when the name is replica Greubel Forsey.
Now I bet that for most of you, if this name comes up in a conversation with your watch lover, images of complicated timepieces start popping up in your mind immediately. Incredibly wonderful exotic dial. This is not surprising, as the brand has become legendary for its innovative creations featuring two, three and sometimes even four tourbillons!
As you might expect, every timepiece takes months, if not years, of research and development to come to fruition, so it seemed only fair that the results of all that hard work be displayed on the dial for the world to see and appreciate. Plus, when a watch comes with a six-figure, and sometimes seven-figure price tag, it needs to stand out from the crowd to justify its extravagance for a new owner.
At least that’s the conventional way of thinking, otherwise why do you think supercars are so curvy? Aerodynamics are of course important, but turning heads is even more so. However, Greubel Forsey, like everything they do, chose to buck the trend on at least one occasion, and I have to say the results are pretty amazing.
However, this subtle beauty may not be immediately apparent to everyone, which is why today we will compare and contrast two of my favorite Greubel Forsey fake watches. The aptly named Secret Quadruple Tourbillon and the more technical-sounding (and looking) asymmetrical quad tourbillon.
Greubel Forsey Quadruple Tourbillon As you might guess from the names, the two pieces presented in this article have many things in common, most notably the complex movement with four tourbillons. Don’t think Greubel Forsey is lazy, but in fact the opposite is true. You’ll see that the original GF03 movement that powers the asymmetric quadruple tourbillon actually took five years to develop and consists of 531 individual parts, each designed specifically for the timepiece.
The SecretQuadruple Tourbillon, released two years later in 2012, also featured an updated version of this incredible movement, incorporating the learnings of Grebuel Forsey during those two years. Called the Calibre GF03J, the movement consists of 519 individual parts, 11 fewer than the original, and reflects the company’s commitment to continuous improvement through innovation.
However, aside from minor changes, the actions are more or less the same, which is a good thing because they are spectacular. The main draw is of course the four tourbillons, although at first glance you might think there are only two (or in the case of the secret version, none at all, but more on that later.) This optical illusion stems from the fact that , there is actually a tourbillon inside the tourbillon, or in other words, both escapements are so-called “double tourbillons”. This means there is an outer tourbillon and an inner tourbillon, each rotating on a different axis. In the case of the quadruple tourbillon, the outer tourbillon completes a full rotation every four minutes, while the inner tourbillon – at an angle of 30° – completes a full rotation every minute. fashion watch
The primary goal here is to achieve the highest level of precision through a mechanical movement. This is why the two sets of tourbillons are coupled together via a spherical differential (visible on the back of the two components) to further enhance the overall performance. I won’t go into the details of the theoretical influence of the tourbillon on the effect of gravity on the movement of different positions, but suffice it to say that before the watch leaves the factory at Greubel Forsey, it changes by -1/+2 seconds per day. Compare this to the COSC requirement of -4/+6s and it quickly becomes apparent that Greubel Forsey puts itself on a completely different scale.
Still, this is where things get interesting, at least for me. On the asymmetric quadruple tourbillon, all of the above is clearly visible thanks to the openworked nature of the dial. You can see the two double tourbillon cages – each made up of 128 parts – in great detail, and it’s clear why this incredible timepiece comes with a seven-figure price tag.
However, the Secret replica Quadruple Tourbillon is something else entirely. As the name suggests, the fascinating complexity of the movement is completely hidden and its secrets are known only to the owner, who can admire them through the sapphire caseback. According to the brand, the Quadruple Tourbillon Secret represents a special connection between Greubel Forsey and collectors, the ultimate expression of sophistication and sophistication. It’s a watch you buy for yourself, not someone else.
There are four different variants of the quadruple tourbillon; the two versions of the Asymmetrical are in platinum and rose gold, and the two versions of the Secret, also in platinum and rose gold. All four are housed in the same asymmetrical 43.5mm case, and all four are spectacular.
