SEIKO SRPD93 Watch for Men - 5 Sports - Automatic with Manual Winding Movement, Blue Sunray Dial with Blue Bezel, Stainless Steel Case, Black Silicone Strap, and Day/Date Display Caliber Number 4R36 Movement Type Automatic with manual winding Power reserve Approx. 41 hours Jewels 24 Functions Stop seconds 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 Silicone Distance between lugs 22