Seiko bases this collection on the post-war era, when people are focussed on technology instead of tradition. In 1963 Seiko launches the Sportsmatic 5 models. A mechanic watch provided with all the comforts. The 5 stands for 5 functional characteristics of the watch; exact date display, water resistant, automatic winding up, a sunken crown and durable material. This watch is advanced for sure, regardless which time it is living in.