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Greubel Forsey Unveils Final Editions of the Balancier Convexe S² in White and Black Ceramic

MARCH 17 2026    |    Novelties

Greubel Forsey introduces the final and most exclusive editions of the Balancier Convexe S²: one in black ceramic with 5N red gold, and one in white ceramic, each strictly limited to 11 pieces.
These editions conclude a calibre developed through five years of mechanical and architectural exploration, with production set to cease permanently in 2026.

The Convexe case (41.5 mm) and movement were conceived as a single architectural whole, integrating Greubel Forsey’s signature 30° inclined balance wheel system as the visual and chronometric centre. The openworked movement features 301 components, including a 68‑part escapement platform, and is 
powered by two rapid-rotation coaxial barrels delivering a 72‑hour chronometric reserve.

Finishing remains uncompromising: frosted titanium bridges, polished bevels, hand‑finished countersinks, and meticulous transitions — even on invisible components.

Two Final Interpretations
Black Ceramic & 5N Red Gold
A dramatic contrast of dark architecture framed by ceramic, with red gold adding warmth and sculptural depth.The interplay of matte and polished surfaces enhances the piece’s three‑dimensional form

White Ceramic
A purist, graphic expression that highlights the structural geometry of the movement through light and shadow.The monochromatic case offers clarity, openness and a distinctly technical aesthetic.

Both editions preserve the characteristic S² display: suspended hours/minutes bridge, small seconds, and sector power‑reserve indication beneath a curved sapphire crystal.

This launch marks the concluding chapter of the Balancier Convexe S²’s five‑year evolution — not an iteration, but a final statement. As of 2026, Greubel Forsey will begin a gradual shift toward an almost entirely new collection, retiring earlier calibres with intention and ceremony rather than quiet discontinuation.

 

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Balancier Contemporain Final Edition

Balancier Convexe S² – White Ceramic

Technical Specifications

 
Movement
Dimensions Overall diameter: 37.00 mm
Thickness: 10.05 mm
Number of Parts Movement: 301
Escapement platform: 68
Jewels 43; olived‑domed jewels set in gold chatons
Chronometric Power Reserve 72 hours
Barrels Two coaxial, series‑coupled fast‑rotating barrels (1 turn in 3.2 hours); one barrel with slipping spring to avoid excess tension; relief‑engraved text, circular‑grained
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; frosted, polished bevelling and countersinks; multi‑level openworked suspended‑arch bridge, straight‑grained and polished, with polished bevelling and countersinks
Movement Side Frosted bridges with polished edges and bevelling; gold plate with engraved limitation number, circular‑grained with polished bevelling and countersinks, straight‑grained flanks
Escapement Platform Titanium; inclined at 30°; frosted with polished countersinks and a large straight‑grained inclined facet; multi‑level openworked balance wheel bridge, straight‑grained and polished with polished bevelling and countersinks
Gearing Involute circle profile; inclined gear and profiled teeth on intermediate wheels of the set‑hands mechanism and small seconds
Displays Hours and minutes on suspended arch bridge; small seconds; power reserve on a sector
Exterior
Case White ceramic with curved synthetic sapphire crystal; three‑dimensional variable‑geometry bezel, hand‑finished; ceramic profiled lugs with screwed fixing; transparent back with high domed sapphire; titanium security screws; raised “Balancier Incliné” and “Greubel Forsey” engraving
Case Dimensions Caseband diameter: 41.50 mm; Bezel diameter: 44.00 mm; Case height: 12.85 mm; Height on sapphire crystals: 14.80 mm
Water Resistance 3 atm / 30 m / 100 ft (NIHS 92‑20 / ISO 22810:2010)
Crown Titanium and rubber with GF logo; interchangeable colour‑coded rubber capping
Dial Three‑dimensional variable‑geometry hour‑ring, polished, with engraved and lacquered minute‑circle; three‑dimensional variable‑geometry hour indexes, polished with Super‑Luminova; power‑reserve indicator, lacquered; gold small seconds dial with polished bevel, engraved and lacquered
Hands Hours/minutes: curved profile, polished steel with Super‑Luminova; small seconds: polished steel, flat black‑polished head; power reserve: red triangle
Strap and Clasp Hand‑sewn textured rubber or rubber with text in relief; titanium folding clasp engraved GF logo
Balancier Contemporain Final Edition

Balancier Convexe S² – Black Ceramic & 5N Red Gold

Technical Specifications

 
Movement
Dimensions Overall diameter: 37.00 mm
Thickness: 10.05 mm
Number of Parts Movement: 301
Escapement platform: 68
Jewels 43; olived‑domed jewels set in gold chatons
Chronometric Power Reserve 72 hours
Barrels Two coaxial, series‑coupled fast‑rotating barrels (1 turn in 3.2 hours); one barrel with 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 Plates Titanium; frosted with polished bevelling and countersinks, black treatment; multi‑level openworked suspended‑arch bridge, black treatment, straight‑grained and polished with polished bevelling and countersinks
Movement Side Frosted bridges with black treatment, polished edges and countersinks; gold plate with engraved limitation number, circular‑grained with polished bevelling and countersinks, straight‑grained flanks
Escapement Platform Titanium; inclined at 30°; frosted with polished countersinks and large straight‑grained inclined facet, grey treatment; multi‑level openworked balance wheel bridge, black treatment, straight‑grained and polished with polished bevelling and countersinks
Gearing Involute circle profile; inclined gear and profiled teeth on intermediate wheels of the set‑hands mechanism and small seconds
Displays Hours and minutes on suspended arch bridge; small seconds; power reserve on a sector
Exterior
Case Ceramic and 18k 5N red gold with curved synthetic sapphire crystal; three‑dimensional variable‑geometry bezel (hand‑polished with hand‑finished straight graining); ceramic profiled lugs with screwed fixing; transparent back with high domed sapphire; titanium security screws (black treatment); raised “Balancier Incliné” and “Greubel Forsey” engraving
Case Dimensions Caseband diameter: 41.50 mm; Bezel diameter: 44.00 mm; Case height: 13.25 mm; Height on sapphire crystals: 14.80 mm
Water Resistance 3 atm / 30 m / 100 ft (NIHS 92‑20 / ISO 22810:2010)
Crown 18k 5N red gold, titanium and rubber with GF logo; interchangeable colour‑coded rubber capping
Dial Three‑dimensional variable‑geometry hour‑ring, polished, with engraved and lacquered minutes indexes; three‑dimensional variable‑geometry hour indexes, polished with Super‑Luminova; power‑reserve indicator, engraved and lacquered; gold small seconds dial with polished bevel, black treatment
Hands Hours/minutes: curved profile, polished steel with Super‑Luminova; small seconds: polished steel, flat black‑polished head; power reserve: red triangle
Strap and Clasp Hand‑sewn textured rubber or rubber with text in relief; 18k 5N red gold and titanium folding clasp engraved GF logo

Related Articles

JUNE 05 2025    |    Novelties

Greubel Forsey Redefines Haute Horlogerie with the New GMT Balancier Convexe

Greubel Forsey unveils its new GMT Balancier Convexe. As the Earth takes centre stage within a newly reimagined amphitheatre, the hours, minutes, seconds, second time zone, and universal time indications become both companions and spectators to its quiet revolution.

The new GMT Balancier Convexe replaces its predecessor entirely – not as a variation, but as a complete reinterpretation. With a redesigned case, an integrated power reserve, and enhanced ergonomics, it becomes the purest expression of our GMT complication to date – and the only GMT model in our current collection.

A refined evolution
– Titanium Convexe case now more compact at 42.90 mm for improved wearability.
– New 72-hour power reserve indicator seamlessly integrated into the dial.

Technical enhancements
– 496 components, 73 more than its predecessor.
– Inclined escapement suspended beneath polished steel bridge.
– Real-time rotating globe in layered amphitheatre.
– Sapphire disc on caseback with 24 cities, La Chaux-de-Fonds replaces Paris.

Exclusivity
– Limited to 22 pieces worldwide.

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JULY 02 2025    |    Novelties

Greubel Forsey Unveils the Final Balancier Contemporain in Stainless Steel - A Defining Final Edition

Greubel Forsey presents the final edition of the Balancier Contemporain, marking the definitive conclusion of this iconic calibre. This timepiece is housed in a 39.6mm stainless steel case – a material that has only been used twice before in the history of the Atelier. Limited to just 33 timepieces, this edition will be built and delivered exclusively in 2025. Once complete, the Balancier Contemporain calibre will be permanently retired and will never be made again.

More than a final edition, this stainless steel interpretation is a statement of purpose – it is the rarest and most exclusive case material in the Atelier’s repertoire. Its presence here is deliberate: to honour the legacy of the Balancier Contemporain with purity, restraint, and resolve.

Compact, Yet Monumental

When it was introduced, the Balancier Contemporain redefined expectations – delivering the full Greubel Forsey experience in just 39.6mm. This final edition preserves that feat of engineering and design. Under its high-domed sapphire crystal, the gold dial reveals a rich interplay of levels, textures, and finishes. A sunburst blue hour-ring frames the composition, while a deep blue minute-circle and sectorial indications for the small seconds and power reserve create both contrast and clarity. A large visual opening draws the eye to the in-house 12.6mm balance wheel, suspended above a flat, black-polished gold plate that provides visual depth and dramatic reflection.

The movement is composed of 256 parts, each hand-finished to the highest standard. The bridges are in nickel silver, frosted and spotted by hand, with perfectly polished bevels and countersinks, straight-grained flanks, and a subtle blue treatment unique to this edition. The balance wheel bridge is flat black polished steel – one of the most demanding finishes in haute horlogerie – with hand-polished bevels that reflect light beautifully. The balance wheel itself is mounted above a flat black-polished gold plate, a surface so refined it becomes both technical and architectural.

On the movement side, a black-polished gold plate is engraved in relief with the fundamental values of Greubel Forsey – invisible to the wearer, yet finished with the same uncompromising care. Olive-domed jewels are set in gold chatons, with hand-polished countersinks that catch the light at just the right angle. Every component, visible or not, is treated with the same reverence – as if each part could stand on its own as a miniature work of art.

A Closing Statement – and a New Beginning

This is the last timepiece to carry the Balancier Contemporain calibre – but it is also the first to signal a new direction. With this final edition, Greubel Forsey opens a new chapter focused on small-diameter timepieces. Over the coming years, this creative momentum will continue to build, exploring new dimensions of mechanical expression, proportion, and elegance – all without compromise.

The Balancier Contemporain in stainless steel is a definitive conclusion – and a confident beginning.
 

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AUGUST 19 2025    |    Novelties

Greubel Forsey Launches the Nano Foudroyante: A New Chapter in Watchmaking Innovation

Greubel Forsey has officially released the Nano Foudroyante, a groundbreaking timepiece that blends cutting-edge nanomechanics with refined craftsmanship. Limited to just 22 pieces, this watch marks a major milestone for the brand, evolving from its earlier Experimental Watch Technology (EWT) concept into a fully developed and independent creation.

The Nano Foudroyante is crafted entirely in white gold and features a rhodium-finished dial with a blue minute track, blued steel hands, and a white foudroyante dial for enhanced legibility. A blue textured rubber strap completes the look, giving the watch a modern and sporty edge.

What sets this timepiece apart is its use of nanomechanics—a revolutionary approach that allows the foudroyante complication to operate using just 16 nanojoules of energy per jump. That’s 1,800 times less than traditional designs. The complication divides each second into six parts, with a red-treated hand rotating once per second, driven directly by the balance wheel. There’s no traditional gear train, just a series of ultra-efficient, low-inertia wheels.

The Nano Foudroyante also features Greubel Forsey’s first flying tourbillon, with the foudroyante dial always facing twelve o’clock for easy reading. Despite its complexity—428 components in total—the movement fits into a compact 37.90mm case, making it the smallest Greubel Forsey watch ever made.

This release is a bold statement of innovation and intent, offering collectors a rare opportunity to own one of the most advanced mechanical watches ever created..
 

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AUGUST 19 2025    |    Novelties

Timeless Precision: Greubel Forsey’s QP Balancier Redefines the Perpetual Calendar

Greubel Forsey proudly unveils the QP Balancier, a revolutionary interpretation of the perpetual calendar that merges intuitive functionality with uncompromising chronometric performance. Limited to just 22 pieces in white gold, this timepiece represents a new pinnacle in haute horlogerie.

At the heart of the QP Balancier lies Greubel Forsey’s patented Mechanical Computer, a 25-part mechanical brain that “understands” the rules of the Gregorian calendar. This innovation allows the watch to adjust instantly in either direction, restart flawlessly after months unwound, and remain programmed until February 28, 2100—all without the need for pushers or complex crown positions.

The QP Balancier integrates 12 indications—including hours, minutes, seconds, power reserve, day, date, month, leap year, day/night, 24-hour display, calendar year, and a patented function selector—into a single crown interface. This makes it the most user-friendly perpetual calendar ever created, eliminating the need for manuals or reset tools.

Aesthetically, the watch is a study in purity and harmony. Its multi-level gold dial presents calendar information in a clear, linear format, flanked by leap year and day/night indicators. The tactile feedback during quick-correction mode offers a unique sensory connection between wearer and mechanism.

Housed in a 45.1 mm white gold case, the QP Balancier features Greubel Forsey’s signature 30° inclined balance wheel, a high-mass, variable-inertia system with gold mean-time screws. The movement comprises 612 hand-finished components, including twin fast-rotating barrels that deliver a 72-hour chronometric power reserve.

With the QP Balancier, Greubel Forsey has not only redefined the perpetual calendar—it has perfected it.
 

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