Caliber Number 4R57 Movement Type Automatic with manual winding capacity Duration Approx. 41 hours Case Material Stainless steel Crystal Dual-curved sapphire Clasp Deployment clasp with push button release Water Resistance Splash Resistant Case Size Thickness: 14.1 ㎜ Diameter: 42 ㎜ Length: 49.2 ㎜ Other Specifications Screw case back See-through case back Other Features 29 jewels Date hand Power reserve display Stop second hand function