The pendulum and weights are critical components to operation of the Grandfather Clock movement.
The pendulum provides the ability to regulate and adjust the time keeping.
But under great-grandson Helmuth Junghans the work of reconstruction was begun.
Junghans was one of the first Black Forest clockmakers to adopt American production methods, first making American-style clocks and later adopting more of a German style.
Weights are hung from the movement by a cable or chain.
The weights must be raised at least every 7 days or the Grandfather Clock will stop.
These brass gears would also make lovely steampunk jewelry charms! This movement is a model 77 and was made for Emperor Clock by Erhard Jauch Uhrenfabrik.
This is a weight and chain driven movement, rather than wind-up with a key and measures about 5" square on the brass side plates. It's marked Made in Germany (rather than West Germany) and is pen engraved with 11-89 09006, but we're dating to the later 1970s as Emperor Clock opened in 1969 and Erhard Jauch Uhrenfabrik closed in 1983.