Case 42 mm, Stainless Steel, white Diamonds. Extreme elegance timepiece, this Classico 40 boasts a special Red Sapphire glass, as well as luminous white diamonds positioned on the numbers and lugs that make it a real jewel to wear. MOVEMENT: automatic mechanical, personalized to U-BOAT specifications for stem and date to be positioned at 9 o’clock. Aiguillage adjusted: H4. Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 38 hours. 25 jewels. FUNCTIONS: hours, minutes, date. CASE: stainless steel AISI 316L, shiny finish, distinguishing crown on the left side, with a patented protective device. Diameter: 40 mm. There are 36 white diamonds set on the lugs of the case (full cut, wsi 090, diameter: 1.20 mm - 0.23 ct.). Thickness: 12.22 mm. Weight: 77 gr. BACK: see through, sealed with 7 external screws. DIAL: three superimposed dials, the first layer in mirror, the second one black colour, with 42 white diamonds set on indexes 12/4/8 (full cut, wsi 090, 1 mm diameter - 0,14 ct.). Visible ruby. Bâton perforated indexes. Perforated bent hands, shiny finishing. CRYSTAL: red high quality sapphire with anti-reflective treatment. WATER RESISTANCE: 100 mt, 10 ATM. STRAP: hand made and hand finished alligator black leather, lining in violet Alcantara, tongue buckle. Width: 18/18 mm. Strap: ref. 7021/Z Buckle: ref. 7769