automatic mechanical modified and personalized at U-Boat specifications with stem position at 9 o’clock. Frequency: 28.800 vibrations per hour, 4 Hz. Power reserve: 40 hours. 25 jewels. Height: 4,60 mm.FUNCTIONS:
hours, minutes, seconds.CASE:
in titanium, with subsequent treatment of IP Black coating. Crown, pin of the hook, screws on the bezel, bezel release lever, limited serial numbering case plate in bronze. Bidirectional rotating bezel in titanium lockable with a lever on the right side of the case. 12 o’clock ball indicator on the bezel made of ceramic. 53 mm diameter.BACK:
in titanium fixed on case with 6 encapsulated hexagon screws in steel, serial number engraved by hand on the back case.
53mm – ref. 8088 – $11,850
U-BOAT STRAP VINTAGE KB01 23/23 IPB PIRAMIDE