NEW Vintage 50's 40's Perfit Watch Glass Crystal Square MC213/7 192 19.2mm 21.3 I am not an expert on these. We got a huge supply off a watch maker that went out of business years ago. This is nice crystal. Not sure where the rest of this is. But hopefully you can use this!!!! This should be good lot for watch maker / repairer. Please check out my other vintage watch parts and crystal. we have lots of them and more to list. I will give deals on multi-orders!!!! FREE SHIP IN USA NEW Vintage 50's 40's Perfit Watch Glass Crystal Square MC213/7 192 19.2mm 21.3 I am not an expert on these. We got a huge supply off a watch maker that went out of business years ago. This is nice crystal. Not sure where the rest of this is. But hopefully you can use this!!!! This should be good lot for watch maker / repairer. Please check out my other vintage watch parts and crystal. we have lots of them and more to list. I will give deals on multi-orders!!!! FREE SHIP IN USA Recommended products Provided by NEW Vintage 50's 40's Perfit Watch Glass Crystal Square MC212/11 188 18.8mm View item NEW Deadstock Vintage 50's 40's Perfit Watch Glass Crystal Square MB233/6 215 MB View item NEW Vintage 50's 40's Perfit Watch Glass Crystal Rectangle # MC223 7 161 16.1mm View item NEW Vintage 50's 40's Perfit Watch Glass Crystal Square # HMC222 4 196 19.6mm View item NEW Vintage 50's 40's Perfit Watch Glass Crystal Rectangle # MC233 7 200 20mm View item NEW Vintage 50's 40's Perfit Watch Glass Crystal rectangle # Mc224 6 177 17.7mm View item NEW Vintage 50's 40's Perfit Watch Glass Crystal Square MB259/2 231 23.1mm View item NEW Vintage 50's 40's Perfit Watch Glass Crystal square # Mc217 3 202 20.2mm View item