I have a black SNK809 that fell of my wrist when removing it for the night and hit a hardwood floor from about 4 feet. It immediately starting running 10 minutes fast per day or about 0.5 sec per minute. I have tried the "taps on the back" and on the side and such but it is not working. I have a tool I 3d printed to unscrew the back safely if that is needed to fix it. I do not think the adjuster arm has enough travel to compensate for that kind of error.
Here are some close up pictures of the movement.
Other than running fast the movement seems to work fine. Surely there is a way to fix it. I would be very appreciative of your help.
Thanks so much in advance.