TECHNICAL DETAILS
MOVEMENT:
automatic mechanical chronograph modified and personalized at U-BOAT specifications for date
display and stem position at 9 o’clock. Laser cut rotor as by U-BOAT specifications.
Frequency 28,800 vibrations per hour; 4 Hz. Power reserve 48 hours. 25 Jewels.
FUNCTIONS:
hours, minutes, seconds, chronograph, 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 50mm. 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, opening U-shaped sapphire fumé crystal with movement view.
DIAL:
three superimposed dials, black. Arabic numerals, hands and markers beige treated with superluminova.
CRYSTAL:
high quality sapphire, with anti-reflective blue treatment.
WATER RESISTANCE:
100 mt, 10 ATM
STRAP:
handmade and hand-finished dark brown calf leather.
Stainless steel tongue buckle. Width: 23/22 mm.
Strap: ref. 4765/Z Buckle: ref. 1763/screws
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