Seiko 5 Sports Black Dial Automatic Men's Watch SRPD57K1. Seiko 5 Sports Black Dial Automatic Men's Watch SRPD57K1 — a Seiko round timepiece with confident wrist presence at 42.5mm. From the 5 Sports collection, paired with a silver stainless steel bracelet for an elegant, considered finish.. Hardlex Crystal guards the black sunray dial — reliable, everyday protection. Water resistance of 100 Metres (10 ATM) handles rain, hand washing, and everyday splashes without issue. Anchored by the stainless steel bracelet and push-button fold-over clasp — solid, secure, built for everyday use. A Seiko 4R36 automatic movement keeps time accurately and reliably.. Specifications. Brand. Seiko. Collection. 5 Sports. Model. SRPD57K1. Gender. Men's. Movement. Automatic. Calibre. Seiko 4R36. Power Reserve. 41 hours. Jewels. 24. Frequency. 21,600 vph. Case Material. Stainless Steel. Case Diameter. 42.5mm. Case Thickness. 13.4mm. Lug-to-Lug. 46mm. Lug Width. 22mm. Case Shape. Round. Case Colour. Silver. Bezel. Unidirectional Rotating Bezel. Crystal. Hardlex Crystal. Caseback. Exhibition Screw-Down. Dial Colour. Black Sunray. Luminous. Hands and Markers. Functions. Hour, Minute, Second, Day, Date. Strap Material. Stainless Steel. Strap Colour. Silver. Clasp. Push-Button Fold-Over Clasp. Water Resistance. 100 Metres (10 ATM). Weight. 170g