Seiko 5 Sports Spacewalk 50th Anniversary Silver Dial Stainless Steel Mens Watch SSA165 Imported Seiko 24 Jewels Self-Winding Automatic Movement with Hackable Second Hand (Calibre 4R36) Stainless Steel Case and Bracelet, Push Button Release Clasp with Safety Lock Feature Hardlex Mineral Crystal, Date Display, Luminous Hands and Markers Case Size: 42.5mm Diameter, 12.5mm Thickness Water Resistant - 100M, Screw Down Transparent Case Back