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AI-detected from the product image
Prospex Sea collection · 33 watches
8 colorways
Lowest displayed prices first.
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Seiko on the secondhand market
+10.3%
2026 so far · +5.7% to +17.0% · 91 matched watches
In line with the index
Divers as a group: +6.6% · 344 matched watches
Year-by-year readings →Owners widely report the Seiko Prospex Sea is a well-built watch that should last, with one owner finding it the perfect size while another with a 6.5-inch wrist found it big, thick, and heavy. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its robust construction and perceived longevity.
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On real wrists
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The matchups people make with the Seiko Prospex Sea most: open one to see it side by side.