Movement 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 Clasp Three-fold clasp with push button release Other Details Water Resistance 10 bar Case Size Thickness: 12.5 ㎜ Diameter: 36.4 ㎜ Length: 44.4 ㎜ Weight 114.0 g Other Specifications Screw case back See-through case back Other Features 24 jewels Day/Date display Stop second hand function