jackteet 0 Posted February 1, 2022 Hi, I have just purchased from fleabay a genuine watch [ sorry ], a 1940`s Waltham wristwatch gold filled. There are a few scratches on the crystal so I thought I would get a tube of Polywatch. I have discovered that there are three different types of crystal made from different materials. Polywatch have different polishes. Given that my watch was made in 1940`s would this dictate which of the three crystals would have been fitted. TIA. jack Share this post Link to post Share on other sites
movintage 2,295 Posted February 1, 2022 @jackteet there are good vids on the web for how to tell the difference between a watches plastic or mineral glass crystals. once you determine which kind you have you can purchase the correct polyWatch Share this post Link to post Share on other sites
jackteet 0 Posted February 1, 2022 hi Movintage, many thanks I shall take a look. jack Share this post Link to post Share on other sites