I've got a basic Seiko 5 that is about three years old. The rotor became loose and a jeweler told me to take the case back off and tighten the screw. Yesterday I tightened it down put the case back on and all seemed well.
I took the watch off around 8 to go to bed and this morning it was stopped at around 10:30. I have it a few shakes and nothing. I can see the rotor and associated gears turning, but the balance wheel won't get moving. If I give it a nudge it immediately comes to a stop.
The watch only cost $60 so it is not worth paying to have it fixed, but I am more than happy to give it a college try on fixing it myself. Any experts who have some pointers or common fixes? Thanks in advance.