I have 1000s of vintage NOS Omega and Tissot plexi glasses. Please ask if you need anything although I do not have any Speedmaster, Railmaster, Seamaster 300 glasses left. Or 5000s

Real/ authentic new old stock plexi with rose gold reflector ring.

Not sure which model this is from.

The lower part as pictured in photo 3 is 3.6mm then we have a groove so I believe this is for a monocoque case. The upper width is 30.8mm

NOTE! You must get a qualified watchmaker to fit these glasses. I will not accept returns on these glasses if cracked, marked or damaged in any way!

This sounds extreme but I do not know how qualified the buyer is to fit these glasses.