Oceaneva is the only US based watch brand to ever send their watches down to the deep depths of the ocean for real world testing(videos online) and only the 6th brand in history to ever do so. BGW9 On Hands,Hour Markers, All Markers and Numbers On Bezel, Top Grade Long Lasting Luminous Screw Down With Triple Seal Crown to Ensure 1250M Water Tightness, Integrated Case Crown Guards, Trident Logo on Crown Screw Down with Triple Seal to Meet 1250M Standard Nearly Scratchproof Anti Reflective Domed Sapphire, 4.8mm Thick. Sealed with 1.40 mm x .45 mm I-Ring to Ensure Water Tightness. Black Ceramic ,Uni-Directional Rotating 120 Click, Ultra Scratch Resistant Swiss Made Sellita SW200-1 Automatic, 26 Jewels, 38 hour Power Reserve, 28,800 bph, 4Hz, Hacking and Quick Date. Equivalent to the ETA 2824, virtually identical except the Sellita has one extra jewel for reduced wear. 4101Feet / 1250M. Design Tested by water pressure test to 1250M. Helium Escape Valve Limited Edition of only 1000 pieces will ever be produced. 4 Year International Warranty on Movement Inner bezel with "Helium Escape Valve" and "Limited Edition". Each Watch Has individual serial # and Limited Edition XXXX/1000 on Caseback. Ceramic Bezel has full BGW9 Luminous. 1st Class Fit and Finish Packaging: Waterproof Case Warranty Card Instruction Card Retail Hang Tag Oceaneva Branded Silicone Rubber Strap With Trident Logo at Each Lug End and Branded Buckle Strap Changing/Bracelet Sizing Tool