W. B. & C. Vintage Glass Watch Crystal 16-5/16 (~36.8mm) - NOS

W. B. & C. Vintage Glass Watch Crystal size 16-5/16 = ~36.8mm with a thickness of ~1.6mm. This is a thicker Mi-C profile crystal with a pretty nice bevel, basically is a standard profile crystal common on vintage watches.  While still likely well over 80 years old, in my 40 years of experience with them I've not found the older crystals to be any more or less brittle than anything you could find today. That said, they are quite likely dirty and need serious cleaning.  I have a supply of crystals that numbers in the hundreds of thousands so I can usually supply just about any size Watch Crystal you need (glass or acrylic) so feel free to inquire. Images do an adequate job of representing the item.