Date a Seiko by serial number. How to decode a Seiko serial number to find production date
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VTG Seiko Automatic 19 jewels Men's Watch Blue Dial Day Date 7006-8040 Cal Works | eBay
Do you know how old your Seiko watch is? Watch and Learn #80 - YouTube
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Deciphering Seiko Case Back Information — Plus9Time
Grand Seiko|registration.grand-seiko.com
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Nicholas Hacko Watchmaker DIY Seiko 7S26 Sydney
Vintage Seiko World Time - Decoding Seiko Part Numbers, Model and Serial No
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Deciphering Seiko Case Back Information — Plus9Time
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Vintage Seiko World Time - Decoding Seiko Part Numbers, Model and Serial No
6309-589A] Looking for more info on my dad's Seiko. Serial# from 1983, bought in 1985. Can't find it in the Japanese catalogues from 83-85, or anywhere online. Smart looking watch, any ideas
Dating a Seiko 5(SNZD65) | WatchUSeek Watch Forums
New Five Sports Serial Number Format — Plus9Time
Vintage Seiko Quartz Wrist Watch, "7830-5020" Serial Number 811026 33 mm. | eBay