I have a nice old Elgin 7j (Model 291) pocket watch which I've just resurrected. It's running a little fast and possibly the reason is that upper bushing for the escape wheel is a little bit egged. I'm going to have to replace it. The question is how? Should I find a jewel which fits and make a setting? Or should I make a brass bushing. I say brass because the original bushing is just the plate itself and so is plated brass. The lower bushing looks fine. Should it be replaced too? Any suggestions?