Innovative crown release system at 8 o'clock for easy time and date setting. U-Boat U24 Swiss Made Automatic Movement with a Frequency of 28,800 vibrations per hour, 4 Hz. Power reserve of 38 hours - 25 Jewels. The movement is modified and personalised to U-BOAT specifications, with the stem position at 9 o’clock. 50mm x 18mm Titanium Case with IP Black Coating and a Distressed Finish - Distinctive crown on left side with locking device. Uni-Directional Lockable Titanium Bezel with Ceramic Ball Indicator. Serial number engraved on a small plate fixed to the side of the case. High Quality Sapphire Crystal Glass with Anti-Reflection Treatment Brass Textured Dial with Arabic numerals, beige distressed hands and markers, treated with beige Superluminova. Silver Skull Emerging from the dial at 9 O'Clock Screwed in, Titanium case back 23mm x 18cm Handmade and Hand-finished Dark Brown Calf Leather Strap with incised Ancient manuscript writing - Titanium Buckle with Black IP Coating EXTRA STRAP: Entirely handmade strap in naturally aged leather, dark brown color. Finishes made with waxed cotton. Precious insets in silver applied. Water Resistant to 300M 30ATM We are Authorised U-Boat Retailers. The watch comes with the Official 2 Years International Warranty and we will stamp it on the Day of Purchase.