Innovative steel crown release system (patented) at 8 o’clock for easy time setting.
Squelette automatic chronograph modified and personalized at U-BOAT specifications. Personalized rotor in silver 925 consisting of three bridges locked through blue screws.
Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 48 hours. 25 jewels.
hours, minutes, seconds, chronograph, 24h indicator.
46 mm diameter case in AISI 316L blackened stainless steel. Distinguishing crown on left side, with a patented protective device. The bezel and the back of the case are locked together by external tubing and a customised key that ensures absolute water resistance. Oversized crown cover for an easy manipulation, secured on the case, positioned at 9 o’clock. Chrono pusher with milling on the external surface.
skeleton dial on three levels.
laser cut hour and minute hands. Hands treated with white superluminova. Hand of the 24h indicator in red colour.
curved sapphire on the face with anti reflective treatment and flat sapphire on the back of the timepiece.
100 mt, 10 ATM.
handmade and hand finished black, calf leather strap. Tongue buckle in blackened stainless steel. Width: 20/22 mm.
Strap: ref. 4139/Z Buckle: ref. 1764
Special handmade finish with different shades that makes each watch one of a kind.