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The Seiko Prospex Black Series SRPK43 is a men's automatic dive watch built for low-light visibility. Its standout feature is Green LumiBrite Pro on the hands and markers, which glows brighter and longer than standard lume. The dark gray dial, black ceramic bezel, and black hard-coated stainless steel case give it a stealthy look. It meets ISO standards for scuba diving, with 200m water resistance and a sapphire crystal. The 24-jewel automatic movement has a 41-hour power reserve and manual winding. Compared with other Prospex divers, it offers the same robust build but adds the specialized lume and blacked-out styling. Reviewers praise its legibility and build, though some find the coated case prone to scratches and the bracelet basic.
In stockSold by DexclusiveReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners appreciate the SRPK43's exceptional lume and rugged build, often calling it a great value for a true dive watch. Some criticize the black coating's durability and the bracelet's quality.
The Seiko Prospex Black Series SRPK43 is an automatic dive watch for men. It is based on one of Seiko's most iconic diving styles and follows ISO standards for scuba diving. The dark gray dial has a magnified day/date calendar and is framed by a black ceramic uni-directional rotating bezel for elapsed timing.
The case and bracelet are stainless steel with a black hard coating. The watch has a screwdown crown and caseback, and a sapphire crystal with anti-reflective coating on the inner surface. The bracelet closes with a tri-fold push-button release clasp with a secure lock and an extender.
Green LumiBrite Pro was developed for divers. It combines a color that is easy to recognize in the dark with higher brightness and a longer afterglow, which gives a night-vision effect for visibility in the dark. The 24-jewel automatic movement can also be wound by hand.



