U-Boat Watch U-42 GMT Limited Edition 888 units produced. GMT automatic mechanical personalized to U-BOAT specifications for date display and stem to be positioned at 9 o clock, third-time zone. Charge axis, stop crown lever (with pin in titanium), bezel runners, and strap pivots in steel 316L AISI. Watertight on axis reset and assured charge by PTFE gasket. Bi-directional rotating bezel, in titanium, lockable with a lever on the right side of the case. Third-time zone indicated on the bezel ring.

Movement: Automatic mechanical personalized to U-BOAT specifications for date display and stem to be positioned at 9 oclock. Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 42 hours. 21 jewels.

Functions: Hours, minutes, seconds, 24h, third time zone, date.
Case: 50 mm titanium case. Uni-directional rotating bezel, in titanium, lockable with a lever on the right side of the case. 12 oclock ball indicator on the bezel made of ceramic.
Back: Titanium, fastened with six steel screws.
Crystal: High quality sapphire glass with anti-reflective treatment.
Dial: Matt black, markers treated with superluminova (beige color). Bton hands, treated with superluminova. Red 24h and third time zone hands.
Water Resistance: 300 metres, 30 ATM.

Strap: Hand made and hand finished calf leather, carefully selected and processed following the traditional artisan handcrafted techniques used in the 1800s, which give the strap a naturally distressed feel and look. Tongue buckle in titanium. Width: 23/23 mm.