Seiko 5 Sports Automatic 24 Jewels SSA299 SSA299K1 SSA299K Men's Watch Features: Stainless Steel Case Green Nylon Strap Automatic Movement Caliber: 4R37 24 Jewels Hardlex Crystal Green Dial Luminous Hands And Indices 24 Hour Indicator Date Display Push/Pull Crown Screw See Through Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 45mm Approximate Case Thickness: 13.4mm