swiss automatic mechanical chronograph, personalized to U-BOAT specifications. Skeletonized rotor.
Frequency: 28,800 vibrations per hour. Power reserve: 48 hours. 25 Jewels.
hours, minutes, seconds, chronograph, date, 24h indicator, bidirectional bezel 24h graduated, crown release lever.
stainless steel AISI 316L, satin hand finish, distinguishing crown on left side, with a patented protective device. Diameter 46 mm.
Serial number engraved on a small plate fixed on the right side of the case. Bezel lockable with a lever on the right side of the case.
sealed with 7 external screws, small window U-shaped with fumé sapphire showing the movement.
three superimposed dials, black. Hands treated with white superluminova. Numbers and indexes with steel brushed frames and filled with white superluminova.
high quality sapphire with anti-reflective treatment.
100 mt, 10 ATM.
handmade and hand finished calf leather, black, with water resistance lining, tongue buckle in steel. Width: 22/22 mm.
Strap: ref. 7935/Z Buckle: ref. 1763/SCREWS