Caliber Number 4R36 Movement Type Automatic with manual winding Precision +45 to -35 seconds per day Power reserve Approx. 41 hours Jewels 24 Functions Stop second hand function Day/Date display Case/Band Case Material Stainless steel Case Size Thickness:13.4mm Diameter:42.5mm Lug-to-lug:46.0mm Crystal Hardlex LumiBrite LumiBrite on hands and index(es) Band Material Nylon Distance between lugs 22 Other Details Water Resistance 10 bar Weight 96.0g Features Unidirectional rotating bezel See-through & Screw case back Condition gently used Comes with seiko booklet Seiko certification of limited warranty And extra band for the watch