Description: Movement : Caliber Number :4R36 Movement Type :Automatic with manual winding capacity Duration :Approx. 41 hours Exterior: Case Material :Stainless steel (hard coating) Crystal :Hardlex Band Material :Nylon Other Resistance : Water Resistance :10 bar Case Size: Thickness: 13.4 ㎜ Diameter: 42.5 ㎜ Length: 46 ㎜ Other Specifications: Screw case back See-through case back Unidirectional rotating bezel Other Features: 24 jewels Day/Date display Stop second hand function