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The King Seiko line began as a hand-wound series but evolved over time into a remarkable automatic lineup born from the friendly rivalry with Suwa’s Grand Seiko.

 

This example, the Ref.5625-7120, features a clean, understated Gray-blue linen dial with crisp applied indices. While the reference was also offered with a white dial, there’s no denying this variant is the most charming. What’s especially interesting, well-documented if you research this reference, is how the dial naturally fades to a charcoal tone over time, much like its Grand Seiko sister, the Ref. 564X-8000.

 

The case design is distinct to this model, with sharp, architectural lugs and flat Zaratsu-style planes that embody Seiko’s classic Grammar of Design. A slim profile and narrow polished bezel frame the dial beautifully, while the recessed crown keeps the silhouette clean and symmetrical.

 

This is the first time we’ve ever encountered a true new old stock example, complete with its original strap, signed buckle, and original price tag. You simply won’t find a better one.

 

The watch will be serviced once purchased. Please allow 1-2 months for servicing to be completed.
 

Ships from Tokyo, Japan.
 

King Seiko 56KS 5625-7120 Gray-blue dial

¥0Price
  • Overall, this set is in immaculate condition.

    The case is factory sharp with a few light storage scratches.

    The original white dial is immaculate, and the handset is overall beautiful. There are no scratches on the glass.

    The original case back is sharp with a few storage scratches, and the medallion deteriorated a bit but overall looks good.

  • BRAND:  King Seiko
    MODEL: 56KS Chronometer
    REFERENCE: 5625-7120
    DIAL: Original dark blue linen dial
    CASE MATERIAL: Stainless Steel
    CASE DIMENSIONS: 36mm wide (excluding crown), 42mm tall, 10mm thick
    CRYSTAL: Mineral Crystal
    CASE BACK: Monocoque Stainless Steel
    MOVEMENT: Cal.5625B
    Manufacturing date: March 1972
    Service History: Unknown, ±10s/day
    Bracelet/Strap: Original Seiko black leather straps with signed KS buckle.

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