Movement Caliber Number 4R35 Movement Type Automatic with manual winding Precision +45 to -35 seconds per day Power reserve Approx. 41 hours Jewels 23 Functions Stop second hand function Date display Case/Band Case Material Stainless steel Case Size Thickness:11.8mm Diameter:40.5mm Lug-to-lug:47.5mm Crystal Box-shaped Hardlex Band Material Calfskin Clasp Three-fold clasp with push button release Distance between lugs 20 Other Details Water Resistance 5 bar Magnetic Resistance 4,800 A/m Weight 69.0g Features LIMITED EDITION on the case back Serial number engraved on the case back Interchangeable band with quick release spring bars See-through & Screw case back