by Randy » Sat Feb 17, 2018 2:38 pm
Hello Hank,
The weakest of mainsprings should run a movement at least 24-30 hours in my experience. Yours may not be broken, but it's probably taken a "set" and won't produce much power.
If you are going to get this one out,..I'm guessing you'll have to further disassemble the watch.
Pull the canon pinion to release the center wheel so you can get the barrel out..etc.etc.
Randy