Seiko 5 Sports Field Green Dial Automatic SRPG33 SRPG33K1 SRPG33K 100M Men's Watch This New SEIKO 5 Sports resembles trench watches, the vintage military pieces. It has been created as robust and reliable as its forefathers who found real use in the fields and designed with all the specifications of the Seiko 5 Sports. The manual wind and hack functions allow for precision time setting. The curved hardlex crystal enlarges the dial components, enhancing visibility.