Schatz (Aug. Schatz & Sohne) made this 1000 day clock in November 1954 (it has date code 11 54 on the rear of the movement). This is the earlier movement style with straight legs. Around mid-1955, Schatz changed the plate design to have curved legs (see this article for a view of the curved leg design).
I cleaned the movement, polished several pivots, and replaced the mainspring and suspension spring.
Below are some photos, there are more in my Picasa Web Album.
Here is a video of the clock:
Horolovar back plate number 1010. Repair job 5066.
Why I Replaced the Mainspring
The original mainspring had rust and sticky green gunk on it. An earlier repairer soaking the entire mainspring barrel in cleaning fluid instead of removing the spring for cleaning probably caused this.
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