Specifications : -Caliber Number : 4R34 -Automatic with manual winding -Power reserve : Approx. 41 hours -24 Jewels -24-hour hand -Stop seconds hand function -Case Material : Stainless steel -Case Size Thickness:13.6mm Diameter:42.5mm Lug-to-lug:46.0mm -Hardlex with lenses -Lumibrite on hands and index(es) -Three-fold clasp with push button release -Distance between lugs : 22 -Water Resistance : 10 bar -Weight : 161.0 -See-through case back -Screw case back -Rotating bezel -Three-fold clasp with secure lock