The Leatherback Sea Turtle Giant Turtle impresses with its 44 mm CARBONOX™ case and up to 100 meters water resistance. The black dial with white numerals ensures maximum readability during the day. At night, this function is taken over by the proven Luminox Light Technology lighting system. "Always Visible", independent of energy, for up to 25 years. Main Characteristics Swiss Made Constant Glow for up to 25 years in any light condition 44mm Diameter 100 meters Water Resistance, 10 ATM, 330 Feet, Individually Tested Ronda 515, Swiss Quartz Movement 395/50 Months Battery Life Carbon Compound / Fiberglass Compound, with Crown Protection Case Uni-directional Rotating Bezel with Super-LumiNova dot at 12H Black Carbon Compound Back Case Hardened Mineral Crystal Double-Security Gasket 12mm Height Weigh 60g Replacement Strap FPX.2201.20Q.1.K Manual GGM.L002.GMT 2 Year Limited Warranty 10 Year Warranty for Tritium Tubes