GREUBEL FORSEY – CONVEXE Balancier 3 Titanium 41.5 mm Edition

GREUBEL FORSEY – CONVEXE Balancier 3 Titanium  41.5 mm Limited Edition 2023

Greubel Forsey opens a new gateway into its world, the Balancier 3.

This timepiece joins the Convexe collection, offering a more refined look. Featuring a majestic arch bridge and crafted over multiple levels, the openworked titanium piece is available in either black or blue finish. Both more rebust and more affordable while reinforcing the high chronometric standards and finishes that are synonymous with the Atelier.

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Almost 20 years were required for Greubel Forsey to embark on this challenge to produce an entirely new, more accessible timepiece with its own unique identity. To achieve this, the Atelier needed to start from scratch. How do you create a timepiece with a comfortable diameter into which the Atelier Manufacture movement can fit? How can you make the piece more affordable when it still has to be 100% hand finished? The Balancier 3 answers all of these questions.

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First comes the style. From the outset, the piece is characterised by its three prominent bridges: the first of which houses the barrel, the second for the large balance wheel, and the third, and most striking of all, is attached to the seconds counter and supports the hour and minute hands.

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All these bridges feature Greubel Forsey’s signature hand finishes: a curved polished surface, polished bevels and hand-polished screws. Each bridge includes its share of sharp internal angles and a curved profile that make the hand finishes particularly complex—details that will certainly be appreciated by collectors.

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This design joins the Convexe collection. The Balancier 3 features the iconic case, even slimmer than before. Its lugs no longer have screws—a first for Greubel Forsey. The Convexe case is profiled on both the back and display sides, making it truly unique in fine watchmaking. Offering total comfort, the piece naturally follows the curvature of the wrist. On the dial side, the double curvature dips towards each end of the strap, creating the highly aesthetic volumes that the movement uses to deploy itself.

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Then, there's the movement. It imbues the timepiece with a dynamic, modern style and offers impeccable chronometry while still becoming Greubel Forsey's most affordable creation. To achieve this, Greubel Forsey once again called on the considerable expertise of its teams. 

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The idea was to create a simple, streamlined and contemporary design that allows you to admire the finish of each of the movement's components. With this in mind, the Atelier focuses on the technical nature of its timepieces: from the source energy to the escapement that drives it, the barrels and the large balance wheel. The essence of the mastery of time.

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The two series-coupled fast-rotating barrels (one turn in 3.2 hours) clearly visible and decorated with the unique rotating graphics design that is becoming a staple of the Convexe collection. Together, they provide a chronometric power reserve of 3 full days. 

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The timepiece will continue to beat for many more hours but perhaps not with the same precise accuracy that Greubel Forsey specifications. The power reserve is shown on the case back for the first time in the Convexe collection.

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On the opposite side, the large balance wheel – “Balancier”, which gives the timepiece its name, can be found between 4 and 6 o’clock. Conveniently integrated into the design, this Greubel Forsey variable-inertia balance is balanced thanks to its 6 gold mean-time screws. 

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It boasts the Atelier's signature large diameter of 12.6 mm, one of the most majestic in contemporary fine watchmaking. Its oscillations echo the small second display at 8 o’clock with its fixed indicator, where it's actually the disc underneath, satin-finished by hand, that rotates and marks the passing seconds.

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And finally, the finishing. The wide bridge supporting the hour and minute hands is the best illustration of this. With its curved, three-dimensional, openworked design, multiple levels, numerous sharp internal angles, and refined arm connecting with the small seconds, it is a true tour de force. Its extremely complex geometry is a perfect match for its hand finishing. 

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This process is reproduced, both sides on the barrel bridge and the balance wheel bridge, which are exquisitely hand-polished and convex like the case that houses them.

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The Balancier 3 is available in a 41,5 mm diameter in two black and blue versions limited to 88 pieces each, with a rubber strap or a Greubel Forsey titanium bracelet upon request.

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 TECHNICAL DETAILS 

Balancier 3 Titanium Limited edition

Hand-wound movement • Hours and minutes • small
seconds • power-reserve • Greubel Forsey balance wheel system

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Movement
Movement dimensions
• Overall diameter: 35.80 mm
• Thickness: 9.03 mm
Number of parts
• Movement: 282 parts
Number of jewels • 43
• Olived-domed jewels in gold chatons 
Chronometric power reserve • 72 hours
Barrels
• Two series-coupled fast-rotating barrels (1 turn in
3.2 hours), one of which is equipped with a slipping spring to avoid excess tension
• Relief-engraved text, circular-grained, black treatment
Balance wheel
• In-house variable-inertia with 6 gold mean-time screws (12.60 mm diameter)
Frequency • 21'600 vibrations/hour
Balance spring
• Phillips terminal curve
• Geneva-style stud
Bridges and main plate
• Titanium
• Frosted, polished bevelling and countersinks, black or blue treatment according to the version
• Multi-level, polished openworked arch bridge, polished bevelling and countersinks
Movement side
• Frosted bridges, polished edges and countersinks
• Gold plate with engraved limitation number, circular- grained, polished bevelling and countersinks, straight- grained flanks
Gearing
• Involute circle profile
Displays
• Hours and minutes, on suspended arch bridge
• Small seconds on disc
• Power reserve on a sector (movement side)

Exterior
Case
• Titanium with curved synthetic sapphire crystal
• Three-dimensional, variable geometry-shaped bezel, hand-polished with hand-finished straight graining
• Profiled lugs
• Transparent back with synthetic sapphire crystal
• Titanium security screws
• Raised engraving "Balancier 3" and "Greubel Forsey"
Case dimensions
• Caseband diameter: 41.50 mm
• Bezel diameter: 43.60 mm
• Case height: 13.35 mm
• Height on synthetic sapphire crystals: 13.55 mm
Water resistance of the case
• Water-resistant 5 atm - 50 m - 164 ft (standard NIHS 92-20/SN ISO 22810:2010)
Crown
• Titanium, polished and straight-grained, with GF logo
Dial side
• Three-dimensional, variable geometry hour-ring with engraved and lacquered minute-circle
• Three-dimensional, variable geometry hour indexes polished, with Super-Luminova
• Light alloy small seconds indicator, circular-grained
Hands
• Hours and minutes, curved profile, polished steel with Super-Luminova
• Small seconds, fixed red triangle
• Power-reserve, in polished steel, flat black polished head
Strap and clasp
• Non-animal material, rubber with texture in relief. titanium folding clasp, engraved GF logo
• On demand: 3-row metal bracelet in titanium, folding clasp with integrated fine adjustment, engraved GF logo

🔰 Limitation 
Limited Edition of 88 pieces.

🔴 Price : RRP   CHF 160’000💰 

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Press Release - 2023
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GREUBEL FORSEY SA
For further information: 
Communication Department 
press@greubelforsey.com – +41 79 194 2884
Eplatures-Grise -16 P.O. Box 670 
2301 La Chaux-de-Fonds - Switzerland
+41 32 925-4545
+41 32 925-4502
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GREUBEL FORSEY – Tourbillon Cardan Titanium Edition

GREUBEL FORSEY – Art of Invention Tourbillon Cardan Titanium 45.5 mm Edition 2023 

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Greubel Forsey unveils its 8th Fundamental Invention: the Tourbillon Cardan

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For many years, Greubel Forsey has been working on the development of a new type of tourbillon. Over the past three years, this tourbillon has transitioned from concept to reality and is now unveiled as the 8th Fundamental Invention of the Atelier. 

 

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To reach a new level of chronometric precision, the Tourbillon Cardan is based on three pillars: a rapid rotating tourbillon, a revolving 30° inclined plane and two constantly tilting rings.

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 For 20 years, Greubel Forsey has been working from the standpoint that contemporary watchmaking is far from having exhausted all the technical possibilities of fine watchmaking. The Atelier has proven this on seven landmark occasions, developing Fundamental Inventions that rethink the basics of movement regulation and other major complications. 

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This titanic undertaking, focused on chronometric performance, continues today with an 8th Invention: the Tourbillon Cardan.

An unprecedented tourbillon

The Tourbillon Cardan is designed to reach new heights of chronometric precision. It combines three principles. 

 

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The first: the tourbillon. The mechanism patented by Abraham-Louis Breguet in 1801 was designed to compensate for the differences in rate, in vertical positions. For Greubel Forsey, this was not the end, but the very beginning.

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While most tourbillons have a revolution of 60 seconds, that of the 8th Fundamental Invention is almost four times faster. Just 16 seconds. This is the fastest yet for a Greubel Forsey tourbillon. It moves through more positions in less time, and therefore offers much a higher average performance.

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What's more, this tourbillon incorporates, for the very first time, the large balance wheel designed, developed and made in-house by Greubel Forsey. 

 

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It benefits from the exemplary balance of its masses, its large size (12.6 mm) and its optimised oscillations. Its high inertia also makes it less sensitive to shocks and variations in speed.

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Second principle: the 30° angle. The tourbillon, as it was conceived over two centuries ago, was designed for pocket watches worn vertically. For a wristwatch, its design needed to be totally rethought, optimised for the positions adopted in everyday 21st century life.

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Third principle: this 30° high-speed tourbillon is guided by two mobile rings, linked by two 90° axes. In 48 seconds, they tilt backwards and forwards. This construction may seem reminiscent of gimbals, but is very different from a traditional gimbal where the two rings are free to move and their job is to keep the object they contain horizontal. 

 

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In the Tourbillon Cardan, the tilt of the rings is controlled (+30° to -30° range), while the degree of inclination of the tourbillon is inclined (also 30°) and never varies, offering a better ratio of angular velocity to chronometric performance.

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Chronometric power reserve

The Tourbillon Cardan has four barrels. This is a remarkable construction at Greubel Forsey (occurring just once in 20 years). They are coaxially stacked, with a slipping mainspring to prevent excess tension during winding. 

 

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They offer 80 hours of chronometric power reserve. Beyond that point, the timepiece still runs very well, but maybe outside the rigorous Greubel Forsey precision tolerances.

A new kind of aesthetic

As the tourbillon cannot be held in place by a fixed upper bridge, this function is performed by the two arched cardan rings. Without adopting the traditional construction, Greubel Forsey's 8th Fundamental Invention creates a new type of tourbillon with a flying appearance, which is both original and patented. 

 

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A seemingly complex construction but with a very small number of components, it offers an open, airy aesthetic that leaves the eye free to admire its kinematics.

100% hand-finished

Some components of the Tourbillon Cardan require up to three days for hand finishing alone. A number of unique finishes have been developed specifically for this timepiece. 

 

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Among them, the movement plates are in frosted nickel silver, with polished bevels and straight grained flanks while a titanium mainplate presents a large polished flank as a backdrop to the cardan. 

 

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Even more particular: the upper bridge of the tourbillon cage is made of frosted titanium with straight grained flanks and polished bevels, above and below. Finally, the arch is barrel-polished. It takes more than 30 hours to finish this single component.

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The cardan’s rings are matt finished, with polished bevels and straight grained flanks, while the lower plate is frosted by hand, a task that requires a particularly special expertise from the Atelier Manufacture. Finally, there are two dials (hours & minutes and seconds), one circular grained with polished flanks and a very large mirror finish angle, the other with a polished exterior flank.

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Greubel Forsey has also developed a high domed sapphire crystal for this piece. It houses the full height of the tourbillon and cardan system, offering a highly architectural technical vision. The view is completely unobstructed over the balance wheel measuring 12.6 mm in diameter. You can admire the majestic swaying of the two cardan rings into which it fits.

A maximum of 11 pieces per year

The Tourbillon Cardan will be available in a 45.5 mm titanium case. This metal was chosen for its modernity and lightness, in keeping with the airy aesthetic of the Cardan tourbillon.

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Greubel Forsey plans to build just 55 pieces of the calibre over the next 5 years.

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 TECHNICAL DETAILS

 Tourbillon Cardan In titanium Hand-wound movement with patented Cardan Tourbillon
Cardan Tourbillon • hours and minutes • small seconds • power-reserve 

Movement
Movement dimensions
• Overall diameter: 39.60 mm
• Thickness: 13.53 mm
Number of parts
• Movement: 389 parts
• Cardan tourbillon cages: 98 parts
• Weight of the cage: 0.92 g
Number of jewels • 49
• Olived-domed jewels in gold chatons
Chronometric power reserve • 80 hours
Barrels   • Four coaxial series-coupled fast-rotating barrels (1 turn in 2.7 hours), one of which is equipped with a slipping spring to avoid excess tension
• Relief-engraved text, circular-grained, black treatment, polished chamfer
Balance wheel • In-house variable-inertia with 6 gold mean-time screws (12.60 mm diameter)
Frequency • 21’600 vibrations/hour
Balance spring • Phillips terminal curve
• Geneva-style stud
Bridges and main plates • Titanium and nickel silver, frosted and spotted, polished bevelling and countersinks, straight-grained flanks
• Hand-bevelled and openworked cage pillars
Movement side • Flat black polished steel tourbillon bridge, polished bevelling and countersinks
• Gold plate engraved with the individual number, circular-grained, polished bevelling, straight-grained flanks

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Cardan Tourbillon
• Ultra-fast inner tourbillon cage (1 rotation in 16 seconds) in titanium, barrel-polished and hand-bevelled, inclined at a 30° angle with gold counterweight
• Outer flying Cardan cages, 48-seconds cycle, double variable tilt at 30°, polished and hand-bevelled,
straight-grained flanks
Gearing
• Involute circle profile
• Conical gearing with profiled teeth
Displays
• Hours and minutes
• Small seconds
• Power reserve on a sector

Exterior

Case
• Titanium with high domed synthetic sapphire crystal
• Transparent back with high domed synthetic sapphire crystal
• Hand-polished bezel, caseband with hand-finished straight graining
• Titanium security screws
• Raised polished engraving “Tourbillon Cardan” and “Greubel Forsey” on a hand-punched background
Case dimensions
• Caseband diameter: 45.50 mm
• Bezel diameter: 46.00 mm
• Case height: 13.81 mm
• Height on synthetic sapphire crystals: 18.15 mm
Water resistance of the case
• Water-resistant 3 atm - 30 m - 100 ft (standard NIHS 92-20/SN ISO 22810:2010)
Crown • Titanium, polished, with GF logo
Dial side
• Multi-level gold dial with openworked pillars, circular-grained with engraved and lacquered minute-
circle, polished flanks
• Gold hour markers
• Small seconds and power-reserve indicators in gold, engraved and lacquered
• Engraved and lacquered GF logo
Hands
• Hours and minutes in polished steel, with Super- LumiNova
• Small seconds and power-reserve in polished steel, hand-polished countersink, flat black polished head
Strap and clasp
• Non-animal material, hand-sewn
• Titanium folding clasp, engraved GF logo

🔰 Limitation 
Limited Edition of 55 pieces (maximum of 11 pieces per year).

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Press Release - 2023
-----------------------------
-------------------------------------------------
GREUBEL FORSEY SA
For further information: 
Communication Department 
press@greubelforsey.com – +41 79 194 2884
Eplatures-Grise -16 P.O. Box 670 
2301 La Chaux-de-Fonds - Switzerland
+41 32 925-4545
+41 32 925-4502
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www.GreubelForsey.com

GREUBEL FORSEY – Double Balancier Convexe Carbon Edition

GREUBEL FORSEY – CONVEXE Double Balancier Convexe Carbon 42.5 mm Limited Edition 2023

Greubel Forsey provokes a sensation unveiling its very first carbon creation. For the occasion, the Double Balancier Convexe takes on new dimensions with a smaller diameter of 42.5mm. This totally unexpected timepiece shares the Atelier’s boldness combining structural complexity with the style of a highly technical material.

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Greubel Forsey delivers a new generation of carbon timepieces. The material becomes part of the Atelier's collections, offering collectors enhanced lightness and resistance.

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Recognised and appreciated by collectors, the Convexe case fully benefits from this design choice. On the case back, its form perfectly meets the curve of the wrist. On the dial, a three-dimensional, curved profile allows the movement to fully express itself. Since carbon fibres are never combined twice in the same way, the design of each piece will also be unique, reinforcing the exclusivity of the timepiece.

Pressing carbon to its limits

It was no mean feat to produce the convexe carbon case. The carbon case, as developed by Greubel Forsey, requires pressure 8 times greater than average (16 tonnes applied to a convexe case, compared to an industry standard 2 tonnes). 

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This mechanical effort makes it possible to obtain a much denser carbon for an almost identical weight, to be enjoyed by the collector.

Style at the service of performance

For Greubel Forsey, this specific technique opens up the possibility of executing fine watchmaking finishing by hand that affirm the Atelier’s identity and status. This is how you'll come to find finishes, from satin to matt and relief engraving on the Double Balancier Convexe, all complementing the natural work of the carbon fibres that Greubel Forsey has taken care to match with the converging lines on the convexe case. 

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This is carbon deployed at its best, both flexible and solid, with fibres between 1 and 5 microns thick, perfectly defined and mastered.

One case, two versions

The timepiece has a considerably more modern feel, perfectly in line with the direction of the signature brand. This is also the reasoning behind the reduced diameter of 42.5mm on the Double Balancier Convexe.

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Greubel Forsey demonstrates the power of these new carbon timepieces from the outset by offering its collectors two versions with strong assertive character. The first features a dominant iridescent green finish, with numerous rich blue hues to the main bridge incorporating the power reserve display, as well as the mainplate and the hour ring. This is complemented by a rubber strap in the same tone, creating a fresh feel and reinforcing the signature brand’s contemporary commitment.

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The second version brings black to the fore, asserting the timepiece's elegant simplicity. The carbon fibre weaves a homogeneous, decidedly contemporary configuration. By contrast, the salient feature that stands out most is the hand-finished movement, with its mirror polishing, sharp internal angles, straight and circular-grained surfaces, and curved hands with luminescent tips. In both the green and black versions, the Double Balancier’s calibre exudes technicality and precision.

The majestic Double Balancier

A truly unique expression of this sixth Fundamental Invention, while the invention itself has never stopped evolving. Its prototype mechanism was patented in 2007. It was first proposed as part of an EWT (Experimental Watch Technology) project, in which the two regulating organs were superimposed and inclined at 20°. A second calibre of just six timepieces followed close behind, with the two regulating organs positioned on three-dimensional planes and inclined, this time at 35°.

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In 2016, Greubel Forsey presented the invention in its current form: the two balance wheels are arranged side by side, inclined at 30°, and linked by a constant spherical differential visible between 6 and 7 o'clock. In each 4-minute period, it halves the margin of error and meets the performance, precision and reliability requirements that Greubel Forsey sets for all its timepieces.

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In this unprecedented compact version with a diameter of 42.5mm, only 22 pieces will be produced in each variation of the Double Balancier Convexe carbon, with the first available from August 2023.

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 TECHNICAL DETAILS

Double Balancier Convexe Carbon Limited edition

Hand-wound movement with 2 patents
Double Balancier • hours and minutes • small seconds •
4-minutes spherical constant differential rotation • power-reserve

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Movement
Movement dimensions
• Overall diameter: 37.70 mm
• Thickness: 9.46 mm
Number of parts
• Movement: 371 parts
• Escapement platform: 2 x 70 parts
• Spherical constant differential: 30 parts
Number of jewels
• 50
• Olived-domed jewels in gold chatons
Chronometric power reserve • 72 hours
Barrels
• Two coaxial series-coupled fast-rotating barrels (1 turn in 3.2 hours), one of which is equipped with a slipping spring to avoid excess tension
• Relief-engraved text, circular-grained, green or black treatment, polished chamfer
Balance wheel
• Variable-inertia with gold mean-time screws (10mm diameter)
Frequency • 21’600 vibrations/hour
Balance springs
• Phillips terminal curve
• Geneva-style stud
• Anti-shock system with gold pin
Bridges and main plates
• Titanium
• Frosted, polished bevelling and countersinks, green or black treatment according to the version
• Multi-level, openworked centre bridge, polished bevelling and countersinks
Movement side
• Flat black polished steel differential bridge
• Gold plate with engraved limitation number, circular-
grained, polished bevelling and countersinks, straight- grained flanks
Escapement platforms
• Inclined at a 30° angle
• Steel, straight graining, hand-polished bevelling and countersinks
• Polished steel pillars
• Openworked steel balance wheel bridges, hand-polished bevelling and countersinks, flat black polished
Gearing
• Involute circle profile
• Inclined gear with profiled teeth on fourth wheel
Displays
• Hours and minutes
• Small seconds
• 4-minutes spherical constant differential rotation
• Power reserve on a sector

Exterior

 Case
• Carbon and titanium with curved synthetic sapphire crystal
• Three-dimensional, variable geometry-shaped bezel, hand-finished
• Profiled lugs, screwed fixing
• Transparent back with curved synthetic sapphire crystal
• Titanium security screws
• Raised engraving “Double Balancier” and “Greubel Forsey”
Case dimensions
• Caseband diameter: 42.50 mm
• Bezel diameter: 44.40 mm
• Case height: 13.75mm
• Height on synthetic sapphire crystals: 14.35 mm
Water resistance of the case
• Water-resistant 5 atm - 50 m - 164 ft (standard NIHS 92-20/SN ISO 22810:2010)
Crown • Carbon, hand-finished with GF logo
Dial side
• Three-dimensional, variable geometry hour-ring with engraved and lacquered minute-circle
• Three-dimensional, variable geometry hour indexes, polished, with Super-Luminova
• Power-reserve indicator, engraved and lacquered
• Differential rotation and small seconds indicators in gold
Hands
• Hours and minutes, curved profile, polished steel with Super-Luminova
• Power-reserve, 4-minutes and small seconds in polished steel, blued according to the version, flat
black polished head
Strap and clasp
• Non-animal material, rubber with texture in relief, titanium and carbon folding clasp, engraved GF

🔰 Limitation 
Limited Edition of 22 pieces.

-----------------------------
Press Release - 2023
-----------------------------
-------------------------------------------------
GREUBEL FORSEY SA
For further information: 
Communication Department 
press@greubelforsey.com – +41 79 194 2884
Eplatures-Grise -16 P.O. Box 670 
2301 La Chaux-de-Fonds - Switzerland
+41 32 925-4545
+41 32 925-4502
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