First post on this forum :)
I've just got a vintage slava 26 jewels with a kind of weird crystal. It seems it has a rim cut into the case right on the top of it, and the crystal fits into there.
The crystal it had in there was old, scratched and came out when I was cleaning it.
I'm attaching some pictures here. Can someone help me with what type of crystal fits it and how does the fitting work?
Ps I've removed the chrome from the case. Will post some pictures after I fix the crystal