MOVEMENT: automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock. Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels. FUNCTIONS: date, hours, minutes, seconds, 24h indicator, graduated uni directional bezel, screw down crown. CASE: stainless steel AISI 316L, satin hand finish, distinguishing crown on left side, with a patented protective device. Serial number plate fixed on the side of the case. Diameter 46 mm. BACK: sealed with seven external screws. DIAL: three superimposed dials, the upper one in black with luminous beige hands and markers. CRYSTAL: sapphire crystal, anti-reflective coating, magnifying lent on the date window. WATER RESISTANCE: 300 mt, 30 ATM. STRAP: black strap, in rubber with lining in calf with Kodiak water repellent treatment. Stainless steel tongue buckle. Width: 22/22 mm.
