Complications Grande Sonnerie

Specifications

About this reference

Eleven years of development. 935 components. Two patents. The most complex timepiece Greubel Forsey has ever built. Overview: Collection: Complications; Model: Grande Sonnerie; Functions: Minute repeater on demand by crown mounted pusher, striking modes selection by pusher, grande and petite sonnerie, silence, striking power reserve, Tourbillon 24 Secondes, hours and minutes, small seconds, movement power reserve.. Specifications: Case material: Titanium; Case diameter: 43.50 mm; Case height: 16.13 mm; Water resistance: 3 atm - 30 m - 100 ft; Frequency: 21,600 vibrations/hour; Power reserve: 72 hours; Limitation: 1 timepiece/year. Description: Eleven years of development. 935 components. Two patents filed. An acoustic resonance cage engineered in titanium. Eleven safety mechanisms built in to protect the striking train. Each figure reflects a specific problem solved — and the Grande Sonnerie carries all of them.; Three striking modes: Grande Sonnerie strikes the hours and quarters in passing; Petite Sonnerie strikes the full hours; Silence suspends all striking. The resonance of the chime is shaped by a titanium acoustic cage, engineered specifically for this movement to amplify projection and clarity.; The striking train operates on a dedicated power reserve, independent from the going train, ensuring consistent acoustic output without compromising timekeeping. Water-resistant to 3 atm. The case is engineered for wrist comfort without compromising the acoustic properties of the resonance cage..