
Ref. SNK803K2
Seiko
Seiko's legendary budget automatic caliber that powered the original Seiko 5 line and SKX diver series for decades. Lacking hacking and hand-winding, it is mechanically simple with just 21 jewels, but this simplicity contributed to its remarkable durability and low maintenance requirements. Now discontinued in favor of the NH35/4R35, the 7S26 remains one of the most iconic and beloved movements in affordable horology.
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2026 so far · +5.9% to +17.2% · 91 matched watches
In line with the index
Year-by-year readings →The Seiko SNK803 (ref. SNK803K2) is an automatic watch, with a 37mm stainless steel case, powered by the Seiko 7S26 movement and a 40-hour power reserve. Water resistance is rated to 30m, under a hardlex crystal.
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