Seiko 5 Sports x Automatic ft. Back To Resin Men Casual Round 100m Water Resistant Watch SRPG83K1 SRPG83 SRPG-83 SRPG-83K1 Discover the lightweight and durable Seiko 5 Sports automatic watch. Housed in a 39mm resin case with a silicone band, it features a unidirectional bezel, 100m water resistance, and Seiko reliable 4R36 movement with a 41-hour power reserve. Equipped with LumiBrite on hands and indexes, a curved hardlex crystal, and day-date display. Built for comfort and adventure. Caliber Number / Movement 4R36 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Hardlex crystal (curved) Luminous LumiBrite on hands and indexes Case / Band Material Resin case with silicone band Water Resistance 100m / 10 bar Case Size Thickness: 12.4 mm Diameter: 39.0 mm Length: 45.9 mm Lug width: 18.0 mm Other Specifications Seiko 5 Sports x Automatic ft. Back To Resin Unidirectional rotating bezel Case back with 4 screws 24 jewels Day and date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)