I'm curious as to how you go about getting the casebacks flat again, I have a similarly caved in case from a watch i bought as a donor, it would seem the previous owner dented the caseback trying to put it back on and then gave up and that's how I got it so cheaply, but I was thinking that perhaps using a small enough die i could press it back to flat with the case closing press, but never did get around to turning up something small enough to fit inside.