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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsThe Seiko 7A28-7090 Yacht Timer is a vintage quartz regatta chronograph, distinguished by its blue-and-yellow five-minute timing display, a seconds countdown scale, and large pushers near 10 and 2 o’clock. Seiko’s 1984 Japanese catalog lists the Yacht Timer under sales code SAY080 and movement family 7A28〈709-711〉.
What is the Seiko 7A28-7090 Yacht Timer?
It is a Seiko chronograph variant identified by case reference 7A28-7090 and commonly called the Yacht Timer by collector and specialist sources. The period catalog uses the product name “SEIKO YACHT TIMER QUARTZ,” lists sales code SAY080, and identifies the movement family as 7A28〈709-711〉. The 1984 Seiko catalog lists it at 35,000 yen—a historical Japanese catalog price, not a current resale estimate.
A specialist regatta-watch history dates the 7A28-7090’s debut to 1982, says it appeared in catalogs from 1983, and reports that it disappeared after 1985 as production ceased. Those introduction and discontinuation dates are secondary-source claims, rather than official Seiko production records; the 1984 catalog independently confirms that the Yacht Timer was listed that year. Seiko regatta-watch history
How does the Yacht Timer display work?
Five-minute elapsed-time blocks
The minutes subdial is described as a 30-minute counter divided into six five-minute blocks, alternating light and royal blue. A yellow hand makes the interval display easier to distinguish at a glance. This distinctive layout presents elapsed time in five-minute steps alongside the chronograph’s other timing indications. Seiko 7A28 Collector’s Guide
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Outer seconds countdown scale
An outer scale counts seconds down from 60 toward zero. Together, the countdown scale and colored five-minute blocks give the dial its regatta-oriented character. The reviewed descriptions establish these visual timing features; they do not show that the watch provides a complete yacht-racing system or replaces race instructions or an official race timer.
Bullhead-style case and pushers
Specialist descriptions call the watch bullhead-style and place its two large chronograph pushers near 10 and 2 o’clock. The prominent controls and unusual dial distinguish it from a conventional-looking chronograph. Seiko regatta-watch history
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How can you identify a 7A28-7090?
Use multiple clues rather than relying on the Yacht Timer name in a listing. The reference and the visual configuration should make sense together:
- Reference: Check for the 7A28-7090 case reference.
- Period catalog identity: The 1984 Japanese Seiko catalog names the Yacht Timer Quartz, sales code SAY080, and movement family 7A28〈709-711〉.
- Dial layout: Look for a 30-minute subdial divided into six alternating light- and royal-blue five-minute sections, a yellow hand, and an outer seconds countdown scale.
- Controls: Specialist descriptions show large pushers positioned near 10 and 2 o’clock.
Catalog evidence and reference descriptions can help establish what a correct example should resemble, but they do not authenticate an individual watch. For a specific listing, compare the reference and dial details, inspect the case and dial condition, check whether the chronograph functions operate, and review service documentation, bracelet or strap originality, and the seller’s return terms.
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What is known about its history—and what is not?
The available period catalog provides a firm historical price point: 35,000 yen — Seiko, 1984. It should not be converted into a present-day valuation without a separately supported method. Seiko’s official heritage page documents the company’s broader chronograph and timing history, including its 1969 launch of an automatic chronograph with a column wheel and vertical clutch; that company history is context, not a model-specific record for the 7A28-7090. Seiko, Our Heritage
The reviewed sources do not establish the 7A28-7090’s exact case dimensions, water resistance, battery type, or current service-part compatibility. They also provide no model-specific production total or reliable current resale benchmark. An asking price should therefore be judged from the condition, documentation, and comparable completed sales available to a buyer—not inferred from the 1984 catalog figure or an unsourced listing.
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What to check before buying one
The 7A28-7090 is a discontinued vintage model. Availability and condition vary by individual example, so assess the watch itself rather than treating the reference as a guarantee of originality or serviceability.
- Confirm that the case reference and the dial’s distinctive Yacht Timer layout are consistent with the model descriptions.
- Inspect the case and dial for condition and signs of alteration; request clear photographs if buying remotely.
- Ask whether the chronograph functions have been checked and request dated service records where available.
- Clarify whether the bracelet or strap is represented as original, and ask for supporting documentation if that matters to you.
- Read the seller’s return terms before purchase, particularly if function or originality is uncertain.
Because the reviewed sources do not establish water resistance for this reference or the condition of any individual watch, do not assume a particular example is safe around water. A named repair or restoration service and current compatibility information are not established here.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
