Adam, your correct, my bad. I pulled it out of the case with the later watches. Checked the SN, it is late 50's.
Two today... Bubbleback, ref. 3372 (1943) Hamilton Gilbert in 14K (1945) presented to Robert Gunder, Hamilton's advertising director at the time. He seems to have picked a very special watch for himself.
Why did they replace the neatly organized dial with a thermostat display? Can you remotely change the temperature of whatever room your in with that?