Case size: 44.8 mm
Case material: Stainless Steel AISI 316L with PVD coating, oil-filled with compensating air bubble
Movement: Swiss Ronda 712.3 Quartz, oil-bath lubricated
Functions: Hours, minutes, screw-down crown
Back: Locking Ring System, engraved serial number, quick battery replacement
Dial: Domed green metal with brushed soleil finish, beige Super-LumiNova® hands and indexes
Crystal: Domed sapphire
Strap: Black vulcanized rubber, 22/20 mm, personalized with U-Boat logo, IPB steel tongue buckle (ref. 8351/Z, buckle ref. 5467/SCREW)
Water resistance: 50 m / 5 ATM

Powered by a Swiss Ronda quartz movement lubricated in an oil bath, the Dark Moon delivers smooth precision with a minimalist two-hand display. Its innovative Locking Ring System allows quick battery replacement, while beige Super-LumiNova® on hands and indexes ensures visibility in all conditions. The domed sapphire crystal completes the bold design, paired with a black vulcanized rubber strap for durability and comfort.

Watch Care Instructions:

Clean regularly with a soft, dry cloth.

Avoid contact with chemicals, solvents, or perfumes.

Keep away from extreme temperatures and magnetic fields.

Ensure the crown is fully pushed in or screwed down before exposure to water.

Store in a dry, cool place or in a watch box when not in use.