Here’s a group shot of my Jets – the most recent arrivals are the two on the left, the early plain dialled model and the Rookie. 

The Jets use Citizen’s circular geared rotor rather than the more usual swinging weight. The three years covered by this group – 1962 to 1965 – pretty well covers the production run of these automatics. By 1964 the UniAuto was in production, with a swinging weight rotor, marking the beginning of the end of the Jet.

More info can be found here: https://sweep-hand.org/the-jet-automatic/