Movement Caliber Number 6R35 Movement Type Automatic with manual winding Accuracy +25 to -15 seconds per day Duration Approx. 70 hours Exterior Case Material Stainless steel Crystal Curved sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite Lumibrite on hands and index(es) Clasp Three-fold clasp with push button release Other Details Water Resistance 20 bar Case Size Thickness: 12.9 ㎜ Diameter: 38 ㎜ Length: 46.2 ㎜ Weight 146.0 g Other Specifications Screw case back Screw-down crown See-through case back Other Features 24 jewels Date display Stop second hand function