Specifications:Seiko 5 Sports Series#SRPE74K1Gold Dial100m Water Resistance+Stainless Steel Gold Tone Case and Band - Day/Date Display - Unidirectional Rotating Bezel - Automatic with Manual Winding Capacity - Caliber 4R3624 Jewels41 Hours Approx. Duration - Hardlex Crystal - Lumibrite on Hands and Indexes - Screw Case Back - See-Through Case Back - Three-Fold Clasp with Secure Lock - Stop Second Hand Function - Case Size:Diameter: 42.5mm - Thickness: 13.4mm