Greubel Forsey Balancier Convexe S²

Greubel Forsey unveils the final two edi2ons 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 edi2on is limited to only 11 2mepieces, making them the most exclusive execu2ons 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 edi2ons represent the defini2ve expression of the Balancier Convexe S² movement. With their release, the calibre enters its final phase: produc2on will cease permanently in 2026, closing this chapter of Greubel Forsey’s mechanical development.