Gruebel Forsey Nano Foudroyante P01036 Watch

The Greubel Forsey Nano Foudroyante is a groundbreaking 37.9 mm white gold timepiece embodying the brand’s 10th Fundamental Invention — a nano-mechanical foudroyante integrated within the first-ever Greubel Forsey flying tourbillon. Through nanomechanics, its foudroyante second mechanism consumes just 16 nanojoules per jump (vs. ~30 µJ in traditional designs), dividing each second into six distinct segments thanks to a 3 Hz (21,600 vph) balance. The watch is driven by a manual-winding flyback chronograph (428 components, including a 142-part tourbillon cage), with a 24-hour chronometric power reserve, a column-wheel control visible via the sapphire caseback, and a dial designed for legibility — the foudroyante hand remains fixed at 12 o’clock even as the tourbillon rotates. Water-resistant to 30 m, it comes on a textured blue rubber strap secured by a white-gold pin buckle, and is limited to just 22 pieces.