In stockSmiths
W10 Military
Ref W10/6645-99 · 35 mm · 1968
US$488
Seiko
Ref 5740-8000 · 36 mm · 1969
One of one, ready to ship
Described honestly · Sold as-is · Insured worldwide shipping
Japan’s first 36,000 vph production watch, sold years before hi-beat became a Grand Seiko word. The hand-wound calibre 5740C gives the seconds hand a sweep so smooth it reads as electric. Silver sunburst dial and slim lugs. A quiet way into serious Seiko.
Dial excellent with one faint tone line at 8. Case crisp; caseback lightly scratched from strap changes.
Full service May 2026: cleaned, oiled for the high beat rate, regulated to +5 s/day.
Ships worldwide, fully insured, with tracking and a signature on delivery.
Sold as-is: this watch is described and photographed exactly as we found it, so please ask anything you need before buying. We don’t offer change-of-mind returns.
If a watch is ever not as described, contact us and we’ll make it right. See our full shipping, returns & authenticity policy.