I just completed repair of this Schatz standard size 400 day clock. Besides cleaning the movement (including the mainspring) and replacing the suspension spring, I polished 4 pivots.
The movies below show the escapement closeup, and the entire clock operating.
The slideshow below shows the front and rear of the clock.
Backplate like No. 1279 but also has a date of 9-52 (September 1952)
Suspension unit 8, 0.004 inch thick suspension spring.
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