Specifications : Movement Caliber Number : 4R36 Movement Type : Automatic with manual winding capacity Duration : Approx. 41 hours Case Material : Stainless steel Glass : Hardlex Crystal LumiBrite : Lumibrite on hands and indexs Water Resistance : 100m Case Size : Thickness : 13.4 ㎜ Diameter : 42.5 ㎜ Length : 46 ㎜ - Screw case back - See-through case back - Unidirectional rotating bezel - 24 jewels - Day/Date display - Stop second hand function