Seiko S23631
Prospex Professional 1000m Diver
What Should You Pay?
Estimated fair market values. Actual prices vary by condition, completeness, and seller.
The Seiko Prospex S23631 is a professional-grade quartz dive watch rated to 1000 meters, featuring the iconic shrouded 'Tuna' case design that combines titanium, steel, and ceramic construction. Distinguished by its all-black colorway and domed sapphire crystal, this model pays homage to Seiko's original 1970s professional diving watches while incorporating modern materials and the reliable 7C46 quartz movement. The watch maintains the classic Tuna aesthetic with its protective outer case shroud designed for extreme underwater conditions.
Specifications
Movement
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