Feature: Details
Case Diameter: 44 mm
Case Material: AISI 316L stainless steel, fully oil-filled with compensation bubble
Case Thickness: 13.2 mm (hyper-domed crystal adds depth)
Crystal: Hyper-domed sapphire, 13.2 mm high × 3 mm thick
Movement: Swiss quartz Ronda 756 (oil-bathed)
Functions: Hours, minutes; rear push-button time setting
Dial: Grey skeleton metal with green Super-LumiNova indices and arrow hands
Caseback: Screw-down Locking Ring System with battery access and QR code

Forgoing traditional boundaries with its avant-garde design, the U‑Boat U‑65 SS Green is a 44 mm stainless steel timepiece brimming with character. Fully oil-filled, its hyper-domed sapphire crystal dissolves the glass barrier, creating an immersive visual depth and clarity, while the embedded compensation bubble adapts to temperature shifts .

The multi-layered skeletonized grey dial comes to life with green Super‑LumiNova-filled arrow hands and markers for instant legibility in any light . Powered by a Swiss Ronda 756 quartz movement lubricated in oil for ultra-smooth performance, the watch replaces the conventional crown with a rear-case pusher for time setting
Uhrinstinkt
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uboatwatch.com
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WatchGecko
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. Finished with a bubble‑compensated, screw-down Locking Ring System caseback for easy battery access, and fitted with a flexible 22 mm silicone strap, this 5 ATM-rated piece balances industrial boldness with everyday adaptability.

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.