55 years ago, Seiko introduced its, and Japan's, first ever diver's watch. With an automatic movement and water resistance to 150m, it proved its reliability when it was used by members of the Japanese Antarctic Research Expedition from 1966 to 1969. In the years that followed, Seiko created many other diver's watches that found favor with professional divers and adventurers alike, thanks to their high quality and reliability.
This new version is characterized by its slim profile and a lowered center of gravity that makes it comfortable to wear on even a smaller wrist.
Movement Type:Automatic with manual winding capacity
Accuracy:+25 to -15 seconds per day
Case Material:Stainless steel (super hard coating)
Crystal Coating:Anti-reflective coating on inner surface
LumiBrite:Lumibrite on hands, indexs and bezel
Clasp:Three-fold clasp with secure lock , push button release with extender