- Mechanical hand winding, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock.
- Frequency: 21,600 vibrations per hour. Power reserve: 42 hours. 17 jewels.
- Hours, minutes.
- Stainless steel AISI 316L, distinguishing patented crown on left side. Serial number plate fixed on the side of the case.Diameter 40 mm.
- Bezel ring in polished tungsten. Thickness 9,50mm.
- Sealed with seven external screws, opening U-shaped sapphire fumé crystal with movement view.
- Three superimposed dials, the upper one in black with luminous beige hands and markers. Visible ruby.
- Sapphire crystal with anti-reflective coating.
- 100 mt, 10 ATM.
- Handmade and hand-finished dark brown alligator leather. Stainless steel tongue buckle. Width: 20/18 mm.