Introducing an entirely new Prospex watch collection, inspired by Seikos professional timekeeping heritage.This timepiece is inspired by the flowing lines of the 1969 worlds first automatic chronograph watch.The latest version is conveniently solar-powered; the watch charges from both natural and electric light with no need for a battery replacement.Becoming official timekeeper for Tokyos high profile international sports event in 1964 was a turning point in Seikos history. Making precisely accurate professional timing instruments, with no prior experience, resulted in the Seiko Watch Corporation design code of visibility, legibility and functionality.