Cyma SA is a Swiss manufacturer of luxury wristwatches, founded by brothers Joseph and Theodore Schwob in 1862. By 1908, Cyma was advertising the resilience of their timepieces when exposed to electricity, magnetism and varying temperatures.  That's from Wikipedia.

This clock is in very good condition.  Just a minor losses to the chrome on the back bottom foot and back as shown on the photos....it is in original condition and it works!

It is 3 1/2" high x 5 1/4" wide and 1 1/2".  Please see photos and email if you have any questions.