Waltham size 37 car clocks

The first two car clocks came from my grandfather. The one with the white dial is from his 1919 Saxon Runabout, and the black dial with radium hands and numerals is from his 1922 Frankilin. The second photograph shows them with the backs removed. The third photo is a "basket case" that I purchased on eBay to use for parts, but have since decided to reassemble and keep.