Movement Caliber Number 4R35 Movement Type Automatic with manual winding Power reserve Approx. 41 hours Jewels 23 Functions Stop second hand function Date display Case/Band Case Material Stainless steel Case Size Thickness:12.0mm Diameter:40.8mm Lug-to-lug:47.0mm Crystal Box-shaped Hardlex LumiBrite Lumibrite on hands and index(es) Clasp Three-fold clasp with push button release Bracelet Length 200.0mm Distance between lugs 20mm Other Details Water Resistance 5 bar Weight 135.0g Features See-through & Screw case back