[Randy H.]

For what it's worth... If these things used a GE-Telechron clock, that cartridge motor and geartrain can be pried apart (the part that goes into the coil extends all the way to the top) at the place where it was rolled shut in the first place. When you lift the works out you will find that the geartrain has goo all over it. That was ONCE oil.
Flush it all out with alcohol. Better yet, take it to a place that repairs real watches. Have THEM flush it out for you. A small amount of light oil will make it last another 75 years or so. (before you seal it up again, set the movement back in the housing, and the housing back in the coil. Plugh it in. Be sure it runs at all, and in the correct direction.

This works for the old Clock Radios as well. Most used GE-Telechron movements, and evenually siezed up with 'Goo-Itus'.