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Where can I find any data on keystone case production year I have Keystone metal case with SN 14653 what year will this case be from? | ||
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IHC Life Member![]() |
The science of dating watch cases eclipses the science of Archaeology by at least a factor of 10 and to learn Archaeology you need at least 5 or 6 years hard continuous study. | |||
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Thank you Dave | |||
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