Greubel Forsey Grande Sonnerie (2017)

Titaninum case in 43.5mm. 11 years of development, 935 parts, 11 safety system, 3 selection modes: Grande Sonnerie, Petite Sonnerie and Silence, Minute Repeater, Cathedral gong, Hammer visible on the dial side, Silent Striking regulator, 20-hour striking mechanism power reserve Automatic winding of the striking mechanism Tourbillon 24 Secondes. Power reserve is at 72hour Priced at 1,150,000.00CHF