Greubel Forsey · Mechanical Nano

Nano Foudroyante EWT

$574,300

Nano Foudroyante EWT, The 10th Fundamental Invention Greubel Forsey is proud to present its 10th Fundamental Invention: the Nano Foudroyante. The mechanism's energy is managed at the nanojoule scale, significantly reducing the number of components and the overall dimensions. The result is a 37.9 mm timepiece that combines the world's first perpetual Nano Foudroyante with Greubel Forsey's first flying tourbillon and manual wind flyback. This timepiece, set in a white gold case, is limited to 22 timepieces. White gold case, 37.90 mm, 24 hours power reserve, limited to 22 timepieces. Officially price on request — the figure shown is a press-reported estimate.