Part of Seiko’s celebrated “Save The Ocean” series, the Seiko Prospex Samurai pays tribute to marine conservation and the beauty of the underwater world. Its striking blue dial, inspired by the light and wave patterns seen from the perspective of a manta ray beneath the ocean’s surface, captures both artistry and purpose.
Powered by the reliable Caliber 4R35 automatic movement, it offers a 41-hour power reserve and manual winding capability. The 43.8 mm stainless-steel case with ceramic bezel and sapphire crystal with magnifier ensures professional-grade durability, while the silicone strap provides comfort and flexibility for diving or daily wear. With 200 m water resistance, screw-down crown, and LumiBrite coating across the hands, bezel, and markers, it’s built for adventure above and below the waves.
Specs at a glance:
Movement: Seiko 4R35 automatic, 23 jewels
Power reserve: ~41 hours
Case size: 43.8 mm diameter × 12.8 mm thick
Lug-to-lug: 48.7 mm
Case material: Stainless steel with ceramic bezel
Crystal: Sapphire glass with magnifier (anti-reflective inner coating)
Strap: Blue silicone with pin buckle
Lug width: 22 mm
Water resistance: 20 bar (200 m)
Features: Date display, stop-seconds, screw-down crown, unidirectional rotating bezel, LumiBrite on hands, markers & bezel
Special edition: “Save The Ocean” engraved case back, presented in special box
A distinctive diver’s watch that merges Seiko’s professional-grade engineering with a meaningful cause — the “Save The Ocean” Samurai stands as both a tool for exploration and a statement of preservation.
