I would leave the dial well alone.
I would service the movement, replace the chrono-second hand (which is missing its counterpoise) and replate all the hands gold to match each other. Preferably adding a little patina.
I would leave the crown, and I would leave it at that.
And I would ensure the crystal is as good as could be (if needed, a replacement is reasonable).
The dial is almost all of the personality of a watch, and yours is actually very good for this age. None of the print has come off, almost, and it is not corroded or illegible.
Dave