Seiko Prospex SPB421 Alaska Diver Blue Dial 200m Special Edition Watch
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The Seiko Prospex SPB421 captures the haunting beauty of Alaska's glacial moulins in a U.S. exclusive diving timepiece.
These vertical ice tunnels carved by meltwater inspired the watch's deep blue graduated dial with subtle ice-like texturing that shifts from navy at the periphery to richer tones at the center. This modern reinterpretation of Seiko's groundbreaking 1965 diver's watch maintains the proportions and spirit that made the original legendary while incorporating contemporary materials and movement technology.
The 40.5mm stainless steel case with super-hard coating wears comfortably at 13.2mm thick with gracefully curved lugs spanning 47.6mm. Inside beats the robust Caliber 6R35 automatic movement with an impressive 70-hour power reserve and manual winding capability. The movement's 24 jewels and 21,600 vibrations per hour deliver reliable timekeeping for extended diving expeditions.
Bold LumiBrite hands and markers ensure legibility in murky depths, while the uni-directional rotating bezel tracks elapsed dive time safely. The curved sapphire crystal features anti-reflective coating on the inner surface for enhanced readability. Meeting ISO standards for scuba diving to 200 meters, this tool watch includes a screwdown crown, caseback, and a secure bracelet clasp with push-button release and diver's extender.
The Seiko Prospex SPB421 captures the haunting beauty of Alaska's glacial moulins in a U.S. exclusive diving timepiece.
These vertical ice tunnels carved by meltwater inspired the watch's deep blue graduated dial with subtle ice-like texturing that shifts from navy at the periphery to richer tones at the center. This modern reinterpretation of Seiko's groundbreaking 1965 diver's watch maintains the proportions and spirit that made the original legendary while incorporating contemporary materials and movement technology.
The 40.5mm stainless steel case with super-hard coating wears comfortably at 13.2mm thick with gracefully curved lugs spanning 47.6mm. Inside beats the robust Caliber 6R35 automatic movement with an impressive 70-hour power reserve and manual winding capability. The movement's 24 jewels and 21,600 vibrations per hour deliver reliable timekeeping for extended diving expeditions.
Bold LumiBrite hands and markers ensure legibility in murky depths, while the uni-directional rotating bezel tracks elapsed dive time safely. The curved sapphire crystal features anti-reflective coating on the inner surface for enhanced readability. Meeting ISO standards for scuba diving to 200 meters, this tool watch includes a screwdown crown, caseback, and a secure bracelet clasp with push-button release and diver's extender.
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