automatic mechanical chronograph modified and personalized at U-Boat specifications for date display and stem position at 9 o’clock. Frequency 28.800 vibrations per hour, 4 Hz. Power reserve 44 hours. 25 jewels. Height 7 mm.
hours, minutes, small second, chronograph 60 s, counter 12 at 12, counter 30 minutes at 6. Date window at 9 o’clock.
sterling silver, refinished by hand using the traditional artisanal techniques, martellée finishing. Crown on the left side with a special protective device and push buttons in sterling silver. Diameter 50 mm. Silver weight 119,15 g. Thickness 17,90 mm. Personalization with black diamonds set on the horns of the case, U-Boat logo, chrono pusher at 10 o’clock, buckle and precious decoration in silver set on the strap. (142 black diamonds set patiently one by one, some reversed, total CT 2,99).
see-through, sealed with 7 screws.
black in carbon fiber, with hands and markers in white colour. Arabic numerals, in high relief.
sapphire, highly resistant, fumé.
50 mt, 5 ATM.
calf leather with precious inset in silver. Hand made and hand finished, with sterling silver tongue buckle. Width 23/22 mm, hypoallergenic and colour retain treatment. Fasten to the case with screws.
50mm - ref. 7287 - $18,650
U-BOAT STRAP VINTAGE X016