U-BOAT Classico Ref. 6918-M CHRONO 48 MM 925 SILVER MARTELLEE

OLID STERLING SILVER CASE!

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

FUNCTIONS: 
hours, minutes, small second, chronograph 60 s, counter 30 min and 
12 h. Date window at 9 o'clock.

CASE: 
sterling silver, crown on left side, with a special protective device. 
Diameter: 48 mm. Case silver weight: 104,80 gr approx. Thickness: 18,10 mm.

BACK: 
sealed with 8 external screws, with small crystal sapphire showing the movement balancer.

DIAL: 
two superimposed dials, one in black carbon fiber, the other one cut, treated with composite beige pigments. Arabic numerals. Black hands.

CRYSTAL: 
high quality flat sapphire, scratchproof.

WATER RESISTANCE: 
50 mt, 5 ATM.

STRAP: 
hand made and hand finished calf brown leather and beige alligator lining. Width: 23/22 mm. Deployante buckle cover in sterling silver weight: 28 gr approx. Sterling silver plate weight: 22 gr approx.