automatic mechanical chronograph modified and personalized to 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.
hours, minutes, seconds, chronograph, date.
sterling silver, crown on left side, with a patented protective device. Diameter: 48 mm.
Case silver weight: 120 gr, central horn welded to the case.
sealed with 8 external screws, with small crystal sapphire showing the balance wheel movement.
two superimposed dials, one in beige, the other one cut, treated with composite black pigments.
Arabic numerals. Luminova beige hands. Plate with engraving positioned at 6 o’clock.
high quality, flat sapphire.
50 mt, 5 ATM.
calf dark brown leather. Hand made and hand finished. Tongue buckle in silver. Width: 23/22 mm.