automatic mechanical chronograph processed and modified according to U-BOAT specifics. Custom skeletonized rotor. 28,800 BpH (4 Hz) frequency. 48 hours power reserve. 25 jewels (rubies).
hours, minutes, seconds, chronograph, date, 24 h.
AISI 316L stainless steel, 46mm diameter. Bezel and caseback held together by external ties in the form of specific screws with a custom head type bound to the caseback. An external oversized crown cap for an easier grasp, with a system to keep it attached to the carrure, secured at 9 o’clock (crown-securing patented system).
firmly held in place by 5 screws secured on the bezel. U shaped view on movement covered by a clear flat sapphire glass.
dual-layer dial. Upper layer made in matte black metal. Laser cut numbers, indices and counters; lower layer in sapphire.
hour and minute hands made out of thin laser-cut metal on a hand-painted and hand brushed surface; chrono second hand and 24 hour hand, painted green.
100mt, 10 ATM.
Laser-cut leather in black aged through natural process. Made in Tuscany by expert craftsmen with a thorough process of leather and materials selection, then completely manufactured in Italy. Seams in waxed cotton. Steel tongue buckle. Width: 22/22 mm. Strap: ref. 8764/Z Buckle: 1763/SCREWS