In reply to William Smith wrote: Nice by Constantin
I don't know what the F means.... hopefully someone else may have an idea?
I'm guessing that the area of the Cyrano where there was enameling was slightly indented, so as to allow a place for the enamel to "pool" when applied.
Also, the area between the dial and engraving has a slight margin at 3pm/9pm positions in subject watch, while both Cyrano and Conqueror ads seem to have the engraving "butting up" to the dial edge at 3pm/9pm positions. The engraving in the ads has a small "unengraved" area at "corners", while sujbect watch has this bezel engraving continuing uninterupted around entire outer margin of bezel. ...and the lugs of subject watch may be a little more "pointed or narrow" at the outer end. Artist rendition perhaps?