Re: Birth Year Watch
You will need to do some research on which Seiko calibre is manufactured in 1979.
As a general rule of thumb, Seiko calibre in the past has a production run of approx 10yrs.
The 70s calibre would include most of the collector favorites like 6139(?), 6138, 4006 just to name a few.
There is a Seiko serial number production calculator online somewhere. Perhaps the more knowledgeable Seiko gurus can advise.
All the best in your hunt!
I managed to find these two pcs in my birth month and year
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