I have recently serviced this very nice skeleton wall clock that I bought at an auction, no name or other markings. It came with the weight but was without a pendulum so I constructed one with advice from some members here and after several adjustments to the pendulum length it kept good time. However it stopped after a few days and has continued to do so with varying lengths of running for no apparently reason. It has automatic beat setting and when I start it is in near prefect beat according to my beat timer. Since I can't judge when it is going to stop I haven't been able to determine whether or not it suddenly goes out of beat or stops for some other reason. I have disassembled it several times to check for pivot or bushing wear but they all appear near perfect - I don't think it is a very old clock. Some times it will only run for a few hours and other times for a day or more. Any suggestions as to how I might determine the cause would be greatly appreciated.
