A watch that captures the refined boldness of late-1980s Japan — the Seiko SQ100 5Y23-830W brings together precision engineering and integrated sports design in one timeless package.
The crisp white Roman dial is framed by Seiko’s distinctive octagonal bezel, a design language that echoes the luxury sports watches of the era. Its brushed steel case and gold-tone detailing strike a perfect balance between strength and elegance, while the two-tone integrated bracelet completes the seamless silhouette.
Powered by Seiko’s dependable 5Y23 quartz movement, this reference delivers exceptional accuracy and reliability — hallmarks of Seiko’s golden quartz era.
Every component remains 100% original — dial, hands, crystal, case, and bracelet — preserved in excellent vintage condition throughout. At 38mm (including crown), it wears with confident proportions and timeless versatility.
A standout in Seiko’s SQ100 collection — a rare design that channels the spirit of the Royal Oak while remaining distinctly Seiko. Elegant, precise, and increasingly collectible.
Specifications
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Reference: Seiko SQ100 (Ref. 5Y23-830W)
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Year: Late 1980s
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Movement: Seiko 5Y23 Quartz
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Case Diameter: 38mm (including crown)
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Case Material: Stainless steel with gold-tone octagonal bezel
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Bracelet: Original Seiko two-tone integrated bracelet - will fit up to (22cm)
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Dial: White with Roman numerals and day-date display
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Crystal: Hardlex mineral
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Condition: Excellent vintage condition, all original parts
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Country of Manufacture: Japan
This example is in excellent vintage condition throughout, showing only light signs of careful wear consistent with age.
Fully inspected and tested by Vintage Watch HQ
Tracked & insured UK delivery
