1978 Seiko Blue Dial 6309-8089 17j Watch
Updated September 15, 2026
| Lot number | 256 |
| Category | Jewelry & Watches |
| Auction | Vintage watches Omega,Bulova,Hamilton and more |
| Date | September 30, 2026 at 5:00 PM CDT |
| Auction house | Sphere Auctions LLC |
| Location | Sun Prairie, Wisconsin |
Vintage 1978 Seiko automatic dress wristwatch featuring a 35.61mm stainless steel case and a solid stainless steel screw-down back stamped with serial number 858557, reference code 6309-8089, and a TL factory marking. The original deep blue dial showcases applied silver-tone stick index plots, matching baton hands, a central sweep seconds hand, a framed dual day-date window at 3 o'clock, and the Suwa factory logo printed above the lower track code JAPAN 6309-814LR. The watch is powered by a 17-jewel Seiko caliber 6309A automatic movement and comes paired with a vintage stainless steel flat-link style expansion bracelet.This mechanical watch is running as of the time of listing, though a professional service is required for accurate timekeeping, and extended runtime without service is not guaranteed.
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