Girard-Perregaux caliber GP09400-0011

Skeletonized version of caliber GP 9400. Reference: GP 09400-0011, skeletonised, mechanical with automatic winding Winding: unidirectional via an 18K white gold micro-rotor, coaxial with the barrel Diameter: 36,00 mm (16’’’) Thickness: 9,54 mm Frequency: 21,600 vph - (3 Hz) Number of components: 260 Jewels: 27 Power reserve: min. 60 hours Functions: tourbillon, hours, minutes, small seconds on the tourbillon Tourbillon cage in titanium, 80 components weighting 0,25 grams