@Tony C. @DirtyDozen12 Thanks much for your input, you have fair points.
@DirtyDozen12 Actually the point you raised about the order number not matching the movement serial, is very interesting, Are you aware of any resource online for the order numbers/references identification of the production year, maybe with a description of what type of case it is, maybe even the sizes? Similar to what is available for the serial numbers. Possessing this information would be so valuable as a first step evaluation, but I'm struggling to find such information online.
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