I have a watch with a Miyota 2415 movement. I changed the battery and now the watch stops intermittintly. I went to set the time and when I loosened the screw down crown it started. It has done this three or four times in 48 hrs. It keeps near perfect time when running. Did I miss a restart procedure or is the movement bad? I found the movement for less than 10 bucks, I just don't think I can do it myself. Thanks for any help.