Home Forums General Discussion Forum Screw Standards

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      Do European and American pocket watches use different screw standards? How to check, use a screw plate?

      Bob Tascione

        Hi Jdross99,

        Yes they do differ in many cases.
        I use screw plates to determine thead sizes.
        I also use a comparison list that Ian Wright compiled that is available on his website as a pdf download. Also when you get there check out the watch he made if you haven’t already.
        His URL is:

        Have fun and Happy Thanksgiving!


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