Hi, I have a very nice 9ct gold cased Zenith watch from 1952. My question is that it has a cal 106 movement. Everywhere on the net that I look the cal 106 was a standard movement. My movement however is fitted with a micro regulator and my watchmaker is convinced that it is chronometer grade because of this. Anyone got any ideas?? Regards, Gregb
I don't know that much about that particular movement, but there are plenty of Omega movements, for example, with micro regulator that are not chronometers.