I made this video to show how I got my old Trendmasters Pokémon C-Watch (or C Watch) to work again! As far as I can tell, all of the C-Watched have the same layout inside, so this would work for any of them! If you have any questions, I’ll try to answer as best I can.
Link to the speakers in the video: a.co/d/bSG5vMQ
Music is Everything You Ever Dreamed by HoliznaCC0 used under Public Domain.