I found loads of rolex watches?

Okay so i was in my grandparents room and then i pulled out the draw under the bed and then i had a look inside a time mover box and it was full of rolex watches! 0,o? and apparently my grandad used to love rolex watches and he had lots but then my dad said he could never find them? there are alot in there i'd say there was like 8 there were 3 ss datejusts with jubilee bracelets and diamonds instead of the numirals, a submariner ss and a bi colour gmt and a bi colour date just and an all gold day date with a president bracelet! also there was a ss seiko or soemthing like that but how could he have afforded all of them? how much were rolex watches like hmm 55 years ago? i mean i think they would have earned more than the average couple