The double anti-reflective sapphire crystal protects the dial

The iconic S-shape link design ensures both comfort and elegance

Crystal: Curved red mineral glass

the model provides 300 metres water resistance

making them the perfect choice for wear while surfing

U-Boat Darkmoon Oil Immersion Men’s Blue Watch Size B_13 The double anti-reflective sapphire crystalU Boat Darkmoon Blue IPB Ref. 9020 C introduces the oil immersion concept in a refined 41. 5mm format, delivering a new visual dimension where depth, contrast, and minimalist design take centre stage. Powered by the Swiss Ronda 712. 3 quartz movement, lubricated in an oil bath, this model ensures precise and reliable timekeeping with a pure hours and minutes display. A visible air bubble compensates for temperature variations, reinforcing the