amanico[JLC Moderator]
367764
Nice reading, even if there are a few mistakes...
For example, The Polaris 1st generation, E 859, was in production from 1965 to 1969 ( 1970 is an information I received from JLC Heritage Gallery, but I never saw one with the inside of the case back engraved with the mention " 1970 " ).
Then, the power reserve of the Cal 825 is not 55 hours, but circa 44 hours.
The Polaris II, ref E 870 was in production from 1971 till 1975, and not from 1970 till 1971. 1970 was the year of the prototype.