swiss automatic mechanical modified and personalized at U-BOAT specifications.
Frequency: 28,800 vibrations per hour. Power reserve: 38 hours. 25 Jewels.
hours, minutes, seconds. Uni directional rotating bezel with bronze markers and ball indicator made of ceramic.
50 mm diameter, in titanium, with subsequent treatment of IP opaque Black coating, refinished by hand one by one, using the traditional artisanal techniques.
Crown, pin of the hook, bezel release lever in bronze. Lever for the bezel release on the right side of the case.
Serial number engraved on a small plate fixed on the side of the case.
in titanium fixed on case with 6 screws
matt black, refinished by hand using the traditional artisanal techniques. Hands and markers treated with superluminova.
Precious decoration in silver, hand set.
sapphire glass with anti-reflective treatment.
300 mt, 30 ATM.
handmade calf leather strap with a “tattoo style” pattern made through a laser treatment and processed according to traditional artisan techniques
to give the strap a naturally distressed look and feel, brown color. Finishes made with waxed cotton. Tongue buckle in titanium, width 23/22mm.
Strap: ref. 7707/Z Buckle: ref. 5520
The incised words are part of an ancient manuscript, a mysterious handwritten letter dated 1572.