Background. I have been working on watches only for about a month. Can disassemble and clean a simple manual watch.
I'm trying to fix an automatic watch that was running too fast (by 1+ hour per day). I believe the root cause was a tangled hairspring. I removed the balance assembly and removed the balance wheel from the bridge.
The hairspring was no longer flat and hopelessly tangled. I'm afraid the hairspring is not repairable.
The watch dial is marked "Zaigor". No specific label that would help me to identify the movement.
I hate to retire an entire movement due to a messed up hairspring.
I think I'd have to go to watch school in order to learn how to vibrate a new spring...at this point I think the best case scenario is for me to do a complete balance wheel assembly replacement.
How do I go about identifying and finding a replacement? Options?