The glass I use for these was made by Electroverre in Switzerland; it is very clear and flawless. These crystals are available as small as 30.0mm. The watch shown is not included in this sale.
Beveled Low Dome Pocket Watch Glass Crystal New Vintage 12s 14s 16s 18s 21s 22s
Vintage pocket watch crystal for antique pocket watches. Beveled low dome crystal made in Switzerland. Select size in millimeters from the drop down menu