- automatic mechanical chronograph, modified and personalized to U-BOAT specifications.
- Frequency: 28,800 vibrations per hour, 4 Hz.
- Power reserve: 48 hours. 25 jewels.
- hours, minutes, seconds, chronograph, date.
- 53 mm diameter, titanium with IP Black treatment, involving the use of ionized particles in a vacuum.
- Distinctive crown on left side with patented protection device.
- Matt finish ceramic bezel fixed to the case by six personalized screws.
- two superimposed dials, black. Beige colour hands and indexes treated with superluminova.
- sapphire glass.
- 200 mt, 20 ATM.
- handmade from hand-finished calf leather fastened to the case with screws.
- Tongue buckle in titanium.
- Width 23/22 mm.