Movement Caliber Number 6R64 Movement Type Automatic with manual winding Precision +25 to -15 seconds per day Power reserve Approx. 45 hours Jewels 29 Functions 24-hour hand Date hand Power reserve indicator Calendar-linked time difference adjustment function Stop second hand function Case/Band Case Material Stainless steel (super hard coating) Case Size Thickness:13.7mm Diameter:42.2mm Lug-to-lug:49.2mm Crystal 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 Distance between lugs 20 Other Details Water Resistance 10 bar Features See-through & Screw case back * In an actual product, the case back direction might be different from the photograph.