Still wearing my 18-size Waltham 1892 CPR pocket watch. I’m not showing in this post as I don’t want to wear out its welcome. In the 16 consecutive days I’ve worn it, it is presently 19 seconds fast without being reset. Although the rate hasn’t varied any more than 5 seconds in the last week! It is 107 years old and is performing as well today as it was the day it left the factory.