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Seiko

Scuba Automatic

Ref. 7S26-0020

The Seiko 7S26-0020 is a vintage Seiko Scuba diver's watch known for its 42mm case and robust 200m water resistance. Part of the iconic Seiko Scuba line, it features an automatic movement and is highly sought after by collectors for its classic diver design and reliability. Introduced during the era of Seiko’s legendary sports watches, it remains a staple in the brand’s heritage collection.

crystalmineral
braceletsteel bracelet
movementSeiko automatic (likely 4R35 or similar, 40-hour power reserve)
dial colororange (or other colors like black, white, or blue depending on variant)
case diameter42
case materialsteel
water resistance200
year1980s

A registered Seiko 7S26-0020 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.

RGATT

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RGATT is a provenance registry, not a place to buy or sell watches

RGATT operates a provenance and traceability registry for fine watches. It does not list watches for sale, is never a party to a sale agreed between members, and never holds, escrows or moves funds relating to such a sale. Registration establishes the authenticity of a piece as a best-efforts obligation and is not a warranty of its condition. A clean result in the stolen registry means no theft report matches, not that a watch is guaranteed free of any claim.

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Seiko 7S26-0020 Scuba Automatic