The authors watch stopped working after eighteen months and to put it back to working condition author gave it to different watchmakers that cost him quite a lot. At this point, he remembers the advice of his Uncle James who said a horse is a good horse until he has run away once. The author connects watch connection with it saying the watch was good until had run away once. The unsuccessful tinkers in the world are not able to specialize in anything else. Thus he believed tinkers were not experts and were not aware of anything.