I was recently given a relatives Gruen pocket watch. It has a built in Reuge music box which I believe is mounted on the watch back.
I would like to know how to remove this particular case back. It will screw about a third of a turn and stop . I am reluctant to put too much force to it lest I break it.
I also am wondering if it is a snap off back.
Any advice appreciated.
I would like to know how to remove this particular case back. It will screw about a third of a turn and stop . I am reluctant to put too much force to it lest I break it.
I also am wondering if it is a snap off back.
Any advice appreciated.

