Seiko 5 Sports SSK031K1 GMT Passion Red Limited Edition Men's Watch. The Seiko SSK031K1 carries decades of Japanese horological expertise on the wrist. From the 5 Sports collection, the SSK031K1 measures 42.5mm — carrying confident wrist presence without going overboard. At 161g, this watch has serious presence — you'll know it's there.. 100m (10 Bar) water resistance means this can handle the pool, the beach, and everything in between. Anchored by a stainless steel bracelet and three-fold clasp with secure lock, push button release with extender — solid, secure, built for everyday use. Luminous hands and markers ensure readability after dark — no reaching for your phone. The 4R34 automatic movement runs on wrist motion alone — no batteries needed, ever.. Specifications. Barcode / EAN. 4954628252234. Bezel. Bidirectional rotating bezel with 24-hour display (Black/Red 'Coke'). Brand. Seiko. Calibre. 4R34. Case Colour. Silver. Case Diameter. 42.5mm. Case Material. Stainless Steel. Case Shape. Round. Case Thickness. 13.6mm. Clasp. Three-fold clasp with secure lock, push button release with extender. Collection. 5 Sports. Crystal. Hardlex with magnifying lens. Dial Colour. Red. Functions. GMT, Date, Hour, Minute, Second, Hacking. Gender. Men's. Lug Width. 22mm. Luminous. LumiBrite on hands and indexes. Model. SSK031K1. Movement. Automatic. Strap Colour. Silver. Strap Material. Stainless Steel. Water Resistance. 100m (10 Bar). Weight. 161g