U-Boat Doppiotempo Chrono SS – 9016
swiss automatic mechanical cronograph, personalized to U-BOAT specifications. Skeletonized rotor.
Frequency: 28,800 vibrations per hour. Power reserve: 48 hours. 25 Jewels.
hours, minutes, seconds, cronograph, 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 s