I don't think this one is 220k or so. I believe he might be asking 22k but newho this isn't even the earliest example as the first ones had a smooth caseback. One thing is that Omega has been selling Chronometer rated wristwatches for some time before this model was made, this is just the first time Omega put the word on the dial. These were made around the 1940-1942 time frame and there was actually a lot made but few survived.
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