Movement Caliber Number 4R57 Movement Type Automatic with manual winding Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Sapphire crystal Clasp Three-fold clasp with push button release Other Details Water Resistance 10 bar Case Size Thickness: 14 ㎜ Diameter: 42 ㎜ Other features 29 jewels Date hand Power reserve display Stop second hand function