This is another rare beauty that I did not expect, a vintage Hamilton Pan Europ Chrono-matic 703, powered by the first automatic chronograph movement, the famous Cal. 11 developed by Hamilton, Heuer, Dubois-Depraz and Breitling. This watch is a favorite among Hamilton fans. In fact, Hamilton came out recently with a re-issue of the Pan Europ powered by a modified ETA movement. This watch has a beautiful blue dial that turns into black or purple when viewed at different angles. The cushion case is quite large at 43mm and looks similar to the Heuer 1163 case.