All three automatic, but with different systems: Bumper for the first two, rotor for the Geomatic. Three great vintage JLCs, the stars being the Futurematic and the Geomatic, but the Powermatic is an interesting outsider, the biggest among these three, an...
This is an outstanding trio and a wonderful photo-summary of the manufacture's postwar history. Just these three models in isolation document over two decades of JLC progress from bumpers to rotor-wind chronometers. No two movements are alike (quite diffe...