TECHNICAL DETAILS
Innovative crown release system (patented) at 8 o’clock for easy time and date setting.
MOVEMENT:
automatic mechanical, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock with laser cut rotor.
Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels.
FUNCTIONS:
hours, minutes, seconds, date, 24h indicator, crown release lever.
CASE:
stainless steel AISI 316L, satin hand finish, distinguishing crown on left side, with a patented protective device.
Diameter 45 mm. Bezel ring in polished tungsten. Serial number engraved on a small plate fixed on the side of the case.
BACK:
sealed with seven external screws, U-shaped window with sapphire fumé crystal, showing the movement.
DIAL:
three superimposed layers, black with visible ruby. Arabic numerals, hands and markers luminous beige.
CRYSTAL:
high quality sapphire, with anti-reflection treatment.
WATER RESISTANCE:
100 mt, 10 ATM.
STRAP:
handmade and hand-finished dark brown calf leather. Stainless steel tongue buckle. Width: 20/20 mm.
Strap: ref. 7738/ZÂ Â Buckle: ref. 5466/SCREW
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