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 gold reflector ring.

33mm across. Not sure the reference.

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.