This is a Caliber 529-519Atmos perpetual clock.
This clock never needs to be wound!
It runs on the changes of atmospheric pressure, that causes the clock to be wound.
Based on the serial number this cock was made in late 1952, or early 1953!
I have owned the clock for over 25 years, it works as it should.
These are expensive, high end, Swiss clocks.
The photos show physical condition.
Feel free to ask questions or for specific photos.