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Old 11 January 2021, 06:28 AM   #1
vintagewaferthin
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Join Date: Apr 2012
Location: Earth
Watch: Air-King 5500
Posts: 2,620
Caliber 1520 Jewel Variations
When was the switch made from the 17 jewel cal 1520 to the 26 jewel 1520? I have a '79 5500 with the cal 1520 that as far as I can recall has a 17j 1520. It hacks as well.

I brought to RSC a few years ago and they mentioned it was all correct. My question is: Is 1979 too late to have a 17j 1520 or is that normal?
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