I just finished repairing this 400 day clock with a Herr standard movement. The back of the movement is labeled “Hall Craft Corp.” and “REX”.
Here are movies of the escapement and rear view of the clock in operation:
Here is a slide show of six views of the clock:
The movement needed six pivots polished. Back plate no. 1212. Suspension unit similar to no. 21. Suspension spring 0.0035 inch thick.
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