Well, I wouldn’t beat yourself up over breaking the balance staff pivot, in order for the watch to keep good time in all positions, that pivot needs to be perfectly straight. The tolerances are too precise and the objects are too small. This isn’t something you could do by hand, just sighting it in. I’m not even sure if it something that could be done with a lathe, or rather it’s just not wort it. Either way, you were gonna need to replace the balance staff. I agree with khunter, that unless you can identify this movement, and even then who knows, sourcing a donor movement maybe your only option. Sorry, wish that I could provide a better answer. Being only a hobbiest myself, I can tell you I have gained a supreme appreciation to those that do this professionally. I myself have damaged more watches then I’ve successfully repaired. I’ve learned to live with my failures! Sent from my iPhone using Tapatalk