If that is a genuine Comex 5514 then it could be worth quite some money.
I don't think your AD would have an idea about that as this would be a collectors watch.
There is no Comex on the dial but from I read here
http://doubleredseadweller.com/comex_5514.htm the early ones did not all have Comex on the dial only on the caseback with the three digit serial no. at 6 o'clock as yours has.
I guess someone else will be along shortly with more info. I advise until you know if this is genuine or not do not sell or change anything about the watch.