Seiko Prospex Speedtimer SRQ055 signature W stitching the screwed-down crown gives the

the screwed-down crown gives the timepiece a water resistance of 300m

whose job demands intuitive reading of time

auto cumulative ascent and descent of particular treks)

This product comes as a set: The watch

Seiko Prospex Speedtimer SRQ055 signature W stitching the screwed-down crown gives theProspex Speedtimer Mechanical Chronograph. Seiko Prospex challenges every limit with timepieces created to exceed expectations, engineered with superior style and innovative technology for the sea, sky or land. Driven by a heritage of iconic design, Prospex continues to keep going forward with excellence in precision timekeeping, crafted for the modern world. Based on Seikos Speedtimer chronographs of the early 1970s, this powerful creation offers