Balancier Convexe S²

• Limited Edition: 11 timepieces
• Case: In white ceramic with curved synthetic sapphire crystal• Three-dimensional, variable geometry-shaped bezel, hand-finished • Ceramic profiled lugs, screwed fixing • Transparent back with high domed synthetic sapphire crystal • Titanium security screws • Raised engraving “Balancier Incliné” and “Greubel Forsey”
• Size: 41.5 mm x 14.8 mm (incl. Crystal)
• Movement: hand-wound manufacture caliber
• Power Reserve: approximately 72 hours
• Water Resistance: 30 m
• 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, • Gold small seconds dial with polished bevel
• Caseback: Transparent back with high domed synthetic sapphire crystal
• Hands: Hours and minutes, curved profile, polished steel with Super-Luminova • Small seconds, in polished steel, flat black polished head • Power-reserve, red triangle
• Strap/Bracelet: Hand-sewn textured rubber or rubber with text in relief, titanium folding clasp, engraved GF logo

Greubel Forsey unveils the final two editions of the Balancier Convexe S² – one in black ceramic and 5N red gold, the other in white ceramic – marking the conclusion of a calibre developed and built over the past five years.

Each edition is limited to only 11 timepieces, making them the most exclusive executions of the series. Housed in the signature Convexe case measuring 41.5 mm across the caseband and built around the hand-wound 30° inclined balance wheel system, these editions represent the definitive expression of the Balancier Convexe S² movement.

Between 3 and 4 o’clock is the double openworked “arched” bridge. Its train of wheels below seems somehow suspended as if in a void.  The 301-part movement delivering a 72-hour chronometric power reserve has a perfectly defined architecture, with three large hand-decorated bridges on the movement side. The relief engraving on the 3D barrel cover blends seamlessly into the redesigned case.

With their release, the calibre enters its final phase: production will cease permanently in 2026, closing this chapter of Greubel Forsey’s mechanical development.