The case’s sober architecture forms a backdrop to the regulator, Greubel Forsey’s third invention, the Tourbillon 24 Secondes mechanism, supported at 6 o’clock by a barely detectable transparent sapphire bridge.

The ‘floating’ tourbillon; long central tripod for the hour and minute hands; and multi-level dial featuring raised sapphire chapter ring, all combine to endow this timepiece with a striking sense of depth.

Tourbillon 24 Secondes Contemporain, white gold © Greubel Forsey

A hand-stitched alligator strap with a folding clasp in white gold completes the timepiece.