I just restored this Schatz standard size 400 day clock with diamond-shaped dial. The movement is dated 5 60 (May 1960) on the back. I think this is one of the most beautiful of 400 day clock designs. Made in the Black Forest of Germany.
The customer told me she had just taken it to a repair shop but that they were unable to repair it. After the movement was disassembled and cleaned, I found a few things that needed doing, in addition to pivot polishing:
- The front anchor pivot was bent and needed straightening (these pivots are thin and get bent easily);
- The rear center pivot was bent and needed straightening (this pivot much thicker than the anchor pivots and is not very easy to accidentally bent);
- Two bushings had been installed in the past (I don’t recommend installing bushings in 400 day clocks) and one was not quite upright and the hole was slightly too tight. I was able to upright the hole with a cutting broach, then I used a smoothing broach to polish it.
I replaced the broken suspension spring, and the clock ran properly. Below is a video:
Here are some photos:
The movement is Horolovar back plate no. 1014A. Suspension unit 6789 with .004 inch thick suspension spring. The base has plastic leveling discs. Repair job 5029.
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