U-Boat Swiss Made Ronda 712.3 Quartz Movement. Lubricated with an Oil Bath. Working between 0°/ 60°C when not worn.

45mm x 15mm 316L Stainless Steel Case Filled with a special Oil which emphasises and improves legibility on the dial. High Quality Domed Sapphire Crystal Glass with Anti-Reflection Treatment. Innovative Locking System with Quick Battery Replacement. Double crown on the left side, one for the time adjustment, the other for the second time setting. Screwed In, 316L Stainless Steel case back

Black Dial with Rotating Inner Bezel, Beige Luminova Indexes and Hands. Second time zone hand in green color.

22mm x 20cm Black Vulcanised Rubber Strap with U-BOAT Logo - 316L Stainless Steel Buckle

Water Resistant to 100M 10ATM