Specifications: Movement Caliber Number 4R35 Movement Type Automatic with manual winding Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Box-shaped Hardlex Band Material Calfskin Clasp Three-fold clasp with push button release Other Details Water Resistance 5 bar Case Size Thickness: 11.8 ㎜Diameter: 38.5 ㎜Length: 45.4 ㎜ Weight 63.0 g Other Specifications Screw case back See-through case back Other Features 23 jewels Date display Stop seconds hand function