U-BOAT Chimera Ref. 7673 Opera Nera Black Diamond Pavé - 46 Limited Edition of 88 Units

MOVEMENT: 
U-77 Top Soigné automatic mechanical chronograph, modified and personalized to U-BOAT specifications. 
Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 48 hours. 25 jewels.

FUNCTIONS: hours, minutes, small seconds, 60 s chronograph, 12 h counter at 12 o'clock, 30 min counter at 6 o'clock, date. 

CASE: 
46 mm diameter stainless steel case with IPB black treatment, featuring 412 black diamonds set backwards (3.80 ct.) and black diamonds set in the five external case tubings. The bezel and case back are locked together by external tubing and a customized key that ensures total waterproofing. Personalized silver rotor with a base and three bridges fixed with blue screws. Oversized crown cap for easy handling, secured to the carrure in a distinctive position at 9 o'clock, with patented protection device. Chrono pusher with milling on the external surface. 

DIAL: 
full pavé dial with 312 diamonds (2.50 ct.) and 12 baguette cut rubies (1.50 ct.) for indexes. Mother of pearl counters.

CRYSTAL: curved sapphire glass on the face and flat on the back of the timepiece, fumé. 

WATER RESISTANCE: 
100 mt, 10 ATM. 

STRAP: 
black alligator leather with ray leather insert and nine black diamonds set in a silver cross design (0.4 ct.). Buckle with 16 black diamonds (0.3 ct.). Width: 20/22 mm.