Thats nice Will. It reminded me of one of my (many) unfinished projects, a Garrard with an ETA 1120 movement which I had managed to fit into a NOS case from another manufacturer.
Although I was quite pleased! The caseback was for an automatic and sported the other makers name, inside and out so after looking at yours and having a fit of inspiration I turned to my recently acquired mini lathe and a mineral glass and heres the result!
Now I need to make a new movement ring and give it a service and I may try to blue the screws...... could get messy!! :)