Tourbillon 24 Secondes Architecture

The Tourbillon 24 Secondes Architecture represents a complete departure from conventional movement construction. The convex conical case exposes the calibre from every angle — above, below, and around the entire caseband. No previous Greubel Forsey timepiece has been built this way.

The movement components are suspended on three-dimensional planes, visible through the large dial-side aperture. Encircling that opening, engraved in relief on the case, are the nine principles that guided the creation: Architecture, Harmonie, Innovation, Technique, Bienfacture, Passion, Science, Exclusivité, Créativité.

Viewed from the dial side, the case reads as circular. From any other angle, its convex conical profile becomes apparent, along with the sapphire crystal ring that wraps the entire caseband perimeter. Greubel Forsey has used lateral sapphire apertures since 2007 — never before at this scale or continuity.

354 components, arranged asymmetrically across multiple three-dimensional planes. Each sits in a position determined equally by technical requirement and visual logic. The movement has density but also openness — structure without congestion.