I am pretty sure this is a Dictator model.
Inside of case back reads:
Pat. June 10, 1924
14K Gold Filled
Movement is a running 17 Jewel 8AN movement
I dated this to 1928 based on the case serial number and the movement is a 1927 date based on the square date code.
All of the hands are replacements that are incorrect and when I send this out for service I plan to get the dial refinished to orignal with lume and add a pair of the cathedral styled luminescent hands to go with it.