Caliber Number 4R36 Movement Type Automatic with manual winding Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Curved Hardlex LumiBrite Lumibrite on hands and indexes Strap Material Calf Leather Other Details Water Resistance 10 bar Case Size Thickness: 12.5 ㎜ Diameter: 36.4 ㎜ Length: 44.4 ㎜ Weight 62.0 g Other Specifications Screw case back See-through case back Other Features 24 jewels Day/Date display Stop second hand function