44mm Diameter Origin - Swiss Made Constant glow for up to 25 years in any light condition Water Resistance - 200 Meters, 20 ATM, 660 feet, individually tested Movement - Ronda 515 Battery/Battery Life - 395 / 50 Months Case - 316L Stainless steel case Bezel - Uni-directional rotating CARBONOX™ Case Back - 316l stainless steel, screwed in Crystal - Sapphire with anti-reflective coating Crown - 316L Stainless steel, screw in, protected crown Height - 12mm Weight - 175g