U-Boat Darkmoon Soleil 41.5 Oil Immersion Men’s Green Watch

U-Boat Darkmoon Green Soleil Ref. 9502/B brings colour and innovation directly to the wrist, combining a refined green soleil dial with U-Boat’s signature oil immersion technology for exceptional depth and legibility.

Powered by the Swiss Ronda 762 quartz movement, lubricated in an oil bath, this model delivers precise and reliable timekeeping with a clean display of hours and minutes. The visible air bubble compensates for temperature variations, reinforcing the Darkmoon’s distinctive technical character.

The satin stainless steel case is fully oil-filled to create the illusion of an absent crystal, enhanced by a left-positioned crown and curved sapphire crystal. Finished with a durable black vulcanised rubber strap featuring an easy-release system and steel buckle, this Darkmoon balances modern design with everyday comfort.

Questions & Answers

• What makes the oil immersion design unique? The oil-filled case enhances dial depth and legibility, creating the illusion of no crystal.
• What movement powers this watch? It uses a Swiss Ronda 762 quartz movement lubricated in an oil bath.
• Is the dial luminous? Yes, the hands, numbers, and indexes are treated with beige Luminova.
• Is the battery easy to replace? Yes, the locking ring system allows quick battery replacement.
• Is it suitable for daily wear? Yes, its robust stainless steel case and rubber strap make it ideal for everyday use.