Movement Caliber Number 4R35 Movement Type Automatic with manual winding capacity Accuracy +45 to -35 seconds per day Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Curved sapphire Band Material Calfskin Clasp Three-fold clasp with push button release Other Details Water Resistance Splash Resistant Case Size Thickness: 11.7 ㎜ Diameter: 41.7 ㎜ Length: 48.5 ㎜ Other specifications Screw case back See-through case back Other features 23 jewels Date display Stop second hand function