The Seiko 5 Sports watch is equipped with self-winding automatic movement and GMT timing. Style #SSK003, Seiko 5 Sports SKX Sports Style GMT Series. Features Movement: automatic; runs by hand or wrist movement; never needs batteries & requires little care Case: round; 43mm; bi-color indicator ring on bezel; Hardlex crystal Strap: stainless steel bracelet Closure: deployant clasp Dial: blue with large date window and GMT hand Water resistant: to 100 meters