- 6309-589A] Looking for more info on my dad's Seiko. Serial# from 1983, bought in 1985. Can't find in the Japanese from 83-85, or anywhere online. Smart looking watch, ideas
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- 6309-589A] Looking for more info on my dad's Seiko. Serial# from 1983, bought in 1985. Can't find in the Japanese from 83-85, or anywhere online. Smart looking watch, ideas
- Deciphering Case Information —
- Seiko serial number quirk | The
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- Vintage Seiko World Time - Seiko Part Numbers, Model and Serial No