These folks, Relojes Helvetia in GDL, specialize in antique clock repair and apparently do come to Ajijic to work on larger clocks. I don't know whether they speak English, but they do have a Facebook page where you can contact them as well. I have an antique wall clock I wanted them to fix a couple of years ago but I was able to fix it myself, so I have never used them, but they seem like they