Here's an interesting one in 14k rose gold fill with a copper dial. 1945 Sky Master. As received, it has had a dial refinish at some time in the past that is not a spot-on match to original, but not bad. Seconds track should be black as well as a "shadow" in black behind numbers. "6" should be partially obscurred by the subdial.
Overall pretty clean and keeping time.
Ad dated 1945.