The Dumont was my first and like you I was deeply drawn to the design, which is truly timeless. Our resudent Geo and his platinum salmon version was very much to blame. The other two followed as I fell deeper into the Cartier rabbit hole.
The TTR1931 - in any version- were simply outstanding watches. This is of course highly subjective, but for me the current range of petite secondes don't draw quite the same emotion.