The wear on the rotor is not really the “problem”. It is a symptom of a problem, or maybe two or three problems. One: possibly a worn rotor bearing gear. Two: possibly a broken rotor post. Three: may be loose screws on the rotor post. The watch has possibilities in my opinion. If the watch sells, someone has bought your problem. Same as if you buy on line………you may be buying someone else’s problem! Stick with the devil you know!