MOVEMENT: Swiss automatic mechanical, personalized to U-BOAT specifications. Skeletonized rotor. Frequency: 28,800 vibrations per hour. Power reserve: 44 hours. 26 Jewels. FUNCTIONS: hours, minutes, seconds, date, 24h indicator, bidirectional inner bezel, with hours and 30-minute intervals that synchronize with the additional hand so as to display the two different time zones. CASE: stainless steel AISI 316L, satin hand finish, double crown on the left side, one for the time and date adjustment, the other for the second time setting. Diameter 43 mm. BACK: sealed with 8 external screws, with bronzed sapphire glass showing the movement. DIAL: black, two superimposed dials, with rotating inner bezel. Numbers, hands and markers beige treated with superluminova. 24-hour indicator and hand of the second time zone, in red color. CRYSTAL: ultra curved bronzed sapphire, high quality, with anti-reflective treatment. WATER RESISTANCE: 100 mt, 10 ATM. STRAP: green calf leather, with steel tongue buckle. Width: 22/20 mm. Strap: ref. 8478/Z Buckle: ref. 5466/SCREW
