Your watch looks like it was serviced and the jeweler simply used a dial he had on hand ( not specifically for this model) and probably changed the hands as well as they tend to corrode over time like the dial as these older watches were not sealed tight to the elements. You are right about this time period having used the blued (or black) hands. Those are most common.
Perspiration and oils from the skin would work their way inside and kind of attack the inner surfaces necessitating replacement or refinishing of the various pieces.
Normally the minute track on the dial will follow the edge of the bezel/crystal. When they don't it sometimes indicates that a different dial was installed that was not designed for that particular watch.
For me, a dial refinish tends to run $60 to $80 depending on the final color and whether or not luminescent details on the numbers are added.