This gold watch must be from the 1960’s. It is purchased at a registered juweler in Belgium, but I can’t find anything about this brand online. Sorry this is the only picture I can provide you for now. Someone here who coule provide some information? Would be very appreciated!
Cheers

 

Not much is known. Mikrolisk records the wordmark "Plaza Geneve" as being registered in April 1962 to the manufacturer Boucon of Geneva, Switzerland. I can find no further details on the manufacturer (other than it also owned the wordmark "Leda Geneve") but it was likely one of many family firms that popped up in the mid-1940s and closed in the 1970s.

 

Thank you so much for this information. Exactly what I suspected. Too bad no real history behind this watch but the sentimental value remains