These are all Elgin Grade 315: size 12, 15 jewels, pendant wind and set. Another interesting example of how the same movements are made up to look completely different.
Left to right they are from 1924, 1925 and 1927. The 1925 model also needs its crystal glued onto the bezel.
The 1925 and 1927 models have Illinois Watch Case Company cases; the 1925 has a very fancy case back, as well as filigree on the sides, and is named "Supreme." The 1927 model is smooth nickel and is a front-swing-out version. The 1923 case is a Wadsworth, guaranteed 25 years. Very fancy.
Acquired: 2019
Circa: 1924, 1925, and 1927
Current condition: all run fine; 1923 needs the crystal to be cemented to the bezel ring