US Time Cinderella Watch
When I was little, I had a Cinderella watch which I broke by overwinding and breaking the mainspring. I may have made things worse by taking it apart trying to fix it with my stubby little four-year-old fingers. That watch was the first one I remember owning.
The watch pictured above is not exactly the same — US Time Disney watches date from between 1957 and 1968. But the mainspring is all mangled, so maybe some other 4-year-old got her mitts on it.