This would be like replacing a car engine because of a bent spark plug,
Mmmm, no, this would be like replacing a car engine because of a sheared crankshaft. Break a pivot kill the watch. Yeah, you can make a new pinion but at $40 retail why would you?
I reckon you prolly jacked the balance when you were tweaking on it. It may not have been immediately obvious but I'll bet it eventually started to rub. Having looked at the regulation on a Miyota it's not really designed to be done. That's set up from the factory and left.
Congrats on getting it done. You likely didn't bend the hands, you just put one on crooked because it's the easiest thing in the world to do. Tweezers on either side work hella better assuming you don't have one of those cool watch bench presses whose name escapes me at the moment.
Esslinger's kit has three times as much shit as I use and it's cheap. I'm pretty much at two pairs of brass tweezers, a $30 set of screwdrivers, a bench block, a bunch of pegwood, a bag of finger cots and some lenses for my phone.
Oh, and two Bergeon pieces. I got their ridiculous $12 spudger, which is dope, and a $30 movement holder which is damn handy.