Case Diameter: 46.5 mm
Case Material: AISI 316L stainless steel, oil-filled with compensation air bubble
Crystal: Domed sapphire, curved for enhanced depth
Movement: Swiss Ronda 712.3 quartz, oil-lubricated
Functions: Hours and minutes; crown positioned at 9 o’clock
Dial: Black finish and Aquamarine Super-LumiNova markers and hands
Caseback: Screw-down with Locking Ring System; engraved serial number and quick battery access
Water Resistance: 5 ATM / 50 meters
Strap: Black vulcanized rubber with quick-release system, 22/20 mm width
Buckle: Stainless steel tongue buckle
Case Thickness: Approximately 13 mm
Lug-to-Lug: Around 51 mm

The U‑Boat Darkmoon is a striking blend of Italian design and innovative engineering. Housed in a 44 mm AISI 316L stainless steel case, this timepiece features a fully oil-filled interior that creates a mesmerizing visual depth and a "no-glass" effect, enhanced by a domed sapphire crystal and visible compensation bubble. Its brushed blue soleil dial radiates with sunburst elegance, while beige Super-LumiNova hands and markers ensure clarity in all lighting conditions.

Powered by a Swiss quartz movement submerged in oil for ultra-smooth performance, the watch is secured with a durable vulcanized rubber strap and U-Boat's signature screw-down locking ring system. Water-resistant up to 5 ATM, it’s a bold statement of style, craftsmanship, and modern minimalism.

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.