Eleven years of development and research. The assembly of no fewer than 935 parts. The filing of two patents. The perfecting of an acoustic resonance cage. The installation of eleven safety features offering maximum comfort…These few details give an idea of how monumental an undertaking the creation of the first Greubel Forsey Grande Sonnerie really was.
Product Reference
P00731
Movement
Manual Winding
Display
Hours and minutes, small seconds on a sector, 72-hours power reserve on a sector
Case Material
In titanium with asymmetrical convex synthetic sapphire crystal
Case Color
Silver
Dial Color
Grey
Band Type
Strap
Strap/Bracelet Material
Hand-sewn alligator
Strap/Bracelet Color
Black
Dimensions
43.5mm (w) × 43.5mm (l)
Caseback
Synthetic sapphire crystal
Water-Resistant
30 meters