Movement Caliber Number 8R46 Movement Type Automatic with manual winding Accuracy +25 to -15 seconds per day Duration Approx. 45 hours Exterior Case Material Stainless steel (super hard coating) Crystal Dual-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 10 bar Case Size Thickness: 15.1 ㎜ Diameter: 42.5 ㎜ Length: 45.5 ㎜ Weight 194.0 g Other Specifications Screw case back Other Features 34 jewels Equipped with small seconds hand Stop second hand function