MOVEMENT:
automatic mechanical chronograph personalized to U-Boat specifications for date display and stem to be positioned at 9 o’clock. Frequency: 28.800 vibrations per hour, 4 Hz. Power reserve: 44 hours. 25 jewels. Height: 7 mm.

FUNCTIONS:
hours, minutes, second hand chronograph, counters small seconds at 3, counter 12 at 12, counter 30 minutes at 6. Date window at 9 o’clock.

CASE:
in black ceramic, shiny finish, with internal steel container. Diameter 50 mm. Special crown protection device on the left side.

BACK:
sapphire fumé see-through, 7 screws in. Personalized rotor, in silver, build with a base and 3 bridges fixed with blue screws.

DIAL:
black matt with silver coloured hands and indexes (in high relief). Arabic numbers.

CRYSTAL:
sapphire, scratchproof, fumé, 2,00 mm thick.

WATER RESISTANCE:
100 mt, 10 ATM.

STRAP:
hand made and hand finished alligator leather, square scale, black, 3 circular cuts out with ray leather inset black tongue buckle in steel IPB, with U-Boat personalization. width 23/22 mm, fasten to the case with screws.

50mm – ref. 7387 D – $7,600