Case size: 46.5 mm
Case material: Stainless Steel AISI 316L, oil-filled with compensating air bubble
Movement: Swiss Ronda 762 Quartz, oil-bath lubricated
Functions: Hours, minutes, screw-down crown
Back: Locking Ring System, engraved serial number, quick battery replacement
Dial: Black painted metal, beige Super-LumiNova® hands, numbers & indexes
Crystal: Domed sapphire
Strap: Black vulcanized rubber, easy-release, 22/20 mm with steel tongue buckle
Water resistance: 50 m / 5 ATM

Crafted in 316L stainless steel, completely immersed in oil to enhance legibility and create a unique optical effect. A compensating air bubble ensures balance under temperature changes. Features a Swiss Ronda quartz movement, beige Super-LumiNova® accents, and U-Boat’s innovative Locking Ring System for quick battery replacement. The black vulcanized rubber strap offers both durability and comfort, now with an easy-release system for seamless swaps.

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.