The latest Leatherback Sea Turtle watches feature a 45mm case, case back, and bezel made from CARBONOX. With a water resistance of 10 ATM, this new dive watch, equipped with a PU strap and stainless-steel buckle, is designed for both aquatic and terrestrial activities. As with all Luminox watches, it includes Luminox Light Technology, ensuring visibility in any lighting conditions for up to 25 years.- Swiss Quartz - Approximately 50 months battery life - Constant glow for up to 25 Years - 45mm Case Size - 12mm Case Thickness - Carbonox Case - Polyurethane Strap - Mineral Crystal - 100 Meters Water Resistant