Tru-Seal Round Wrist Watch Crystal sizes 18 thru 33

Tru-Seal Round Wrist Watch Crystal, sizes 18 (~24.1mm) thru 33 (~33.6mm) in ¼ size steps, new in package. These are very much general purpose economy acrylic wrist watch crystals that were usually sold to watchmakers in assortments, so their size can vary .1 to .2mm small, which means good practice is to order about a quarter size larger than you need. As they were designed to be budget crystals, their tolerances are not as good as other crystal manufacturers, which is probably why they didn't ever mark mm sizes on the envelopes. They have a profile that is somewhere between a mid-dome and a high dome. While I do stock many sizes of TS Crystals the ones I can supply from online inventory is shown in the drop-down list - if one size is shown out of stock let me know and I'll go check the warehouse. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.