galaxytime
·Yup.
There is a matching chunk missing from the case as well. Where the gasket is missing. Looks like someone attempted to drill a hole in it. Or tried to pry the back off with something that twisted.
I actually got this for the movement (552) of course I now have another 552 movement (mostly) waiting for a new sweep pinion and some other things. This is how such parts watches breed. Downside is the midwifery fees add up quickly.