Function TimeDate Movement (technology) Quartz Size of case diameter 45.00 mm Case material CARBONOX Case Bezel Uni-directional rotating Case Back Stainless Steel Screw-in Crown Stainless Steel screw down Water resistance (m/ft/atm) 200 / 660 / 20 Crystal/Glass material Sapphire crystal anti-reflective coating Strap/Bracelet material Black Rubber Case Height 14 mm Weight 75g