Hello, I have a Waltham Vanguard 21 jewel pocket watch which I am having some problems with. It was working fine until I brought it in for service and cleaning and once I got it back it started seizing while in the vertical position. I've taken it back to the watchmaker 4 times and he can't figure out what's going on. After I brought it to another watchmaker they bent the case pin to the point where I can't get it open anymore. Could anyone recommend a competent watchmaker who knows antique pocket watches?