Greubel Forsey Collection Convexe Double Balancier

Greubel Forsey Double Balancier Convexe 42.5mm Limited Edition P01236 watch features a 42.5 mm titanium case surrounding a grey skeleton dial on grey rubber strap with deployant buckle. Functions include hours, minutes, small seconds, power reserve indicator and hand-wound mechanical movement features two balance wheels, both inclined at 30°, and linked by a constant spherical differential which calculates their average timing rate in 4-minute sequences. This watch is water resistant to 100m.