Movement Caliber Number 4R35 Movement Type Automatic with manual winding Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Box-shaped Hardlex LumiBrite LumiBrite on hands and indexes Clasp Three-fold clasp with push button release Other Details Water Resistance 5 bar Case Size Thickness: 12 ㎜ Diameter: 40.8 ㎜ Length: 47 ㎜ Bracelet Length 200 ㎜ Other Specifications Screw case back See-through case back Other Features 23 jewels Date display Stop seconds hand function