Seiko Prospex SFJ003P1 'Black On Black' Solar Speedtimer Watch - W25437

The Speedtimer Prospex watch collection represents Seiko's professional timekeeping heritage and takes inspiration from the brand's innovative history. Becoming official timekeeper for Tokyo's 1964 Olympics was a turning point in Seiko's history when the brand began making precisely accurate professional sports timing instruments, with no prior experience. This legacy continues today as Seiko is the World Athletics Official Timekeeper since 1985, supplying timing and measurement services to more than 180 World Athletics events in every corner of the globe. With a 42mm case, this particular Seiko Prospex watch is powered by a new in-house solar chronograph calibre movement, equipped with a stopwatch which measures time to the nearest 1/100th of a second. The black subdials and black (‘black on black’) coloured dial achieves visibility and legibility due to its separate indicators for the time and chronograph functions. Conveniently solar-powered; the watch charges from both natural and electric light and the hammer-shaped button allows for easier operability of the stopwatch function. 100m water resistant. Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike. *NB. The caseback direction may differ from the photograph.