Specifications: MOVEMENT Caliber Number : 4R36 Movement Type : Automaic with manual winding Power Reserve : Approx. 41 hours Jewels : 24 Functions : Stop second hand function, Day/Date display CASE/BAND Case Material : Stainless Steel Case Size : Thickness :13.4 mm Diameter : 42.5 mm Lug-to-lug : 46.0 mm Crystal : Hardlex LumiBrite : Lumibrite on hands and Index Clasp : Three-fold clasp with secure lock, push button release Distance between lug : 22mm OTHER DETAILS Water Resistance :10 bar (100 m) Weight : 170 g Features : Unidirectional rotating bezel, See through & Screw case back