U-Boat CLASSICO 40 IPB BLACK DIAMONDS
Automatic mechanical, personalized to U-Boat specifications for stem to be positioned at 9 o’clock. Aiguillage adjusted: H4. Frequency: 28.800 vibrations per hour, 4 Hz. Power reserve: 40 hours. 25 jewels. Height: 4,60 mm.
Hours, minutes, date at 3 o’clock.
Stainless steel 316L AISI, with subsequent IPB treatment, shiny finishing, distinguishing crown on left side, with a special protective device. Diameter: 40 mm. Thickness: 12,22 mm. Weight: 77 gr.
See through, sealed with 7 external screws.
There are two superimposed dials, black with 43 black diamonds set on indexes 12/4/8 (brilliant 8/8 cut, 0,9 mm diameter). Visible ruby. Bâton indexes. Perforated spheres, shiny finishing.
High quality sapphire, scratchproof.
100 mt, 10 ATM.
Hand made and hand finished alligator black leather, lining in red Alcantara. Tongue buckle. Width: 18/18 mm.