U-Boat 48mm Chimera 925 Black
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MOVEMENT: Top Soigné with black screws, rhodium plated, 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: 48 hours. 25 jewels. Height: 7 mm.
FUNCTIONS: hours, minutes, small second, chronograph 60 s, counter 30 minutes and 12 h. Date window at 9 o’clock.
CASE: sterling silver, double finishing (shinny and matt). An electroplating treatment with silver, 5 microns is executed on the complete case and subsequently an additional rhodium plating nikel free of 1 micron. Crown on left side, screwed in, with a special protective device. Diameter: 48 mm; 58 mm diameter including external crownclutter. Case silver weight: 146 gr approx. Personalized rotor, in silver, build with a base and 3 bridges fixed with blue screws. DIAL: two superimposed dials, baton hands.
CRYSTAL: sapphire curved glass on the face and flat on the back of the timepiece
WATER RESISTANCE: 50 mt, 5 ATM.
STRAP: for ref 7108 hand made and hand finished alligator black leather with inset of dark brown alligator, square scale, tongue silver buckle. For ref 7115 and 7107 hand made and hand finished calf leather, carefully selected and processed to give the strap a naturally distressed feel and look. Tongue silver buckle.