[Inheritance] Audemars Piguet & Piaget

After my mother died, I inherited these two watches from my father (who died 1984, when I was still a child -- so the watches must be even older). Can anyone give me any information about these? Obviously I will never ever part with them but still I want to know what they are worth, which year they were made and so on.

Also: I recently comissioned a full service on the Piaget watch. That did cost me more than 300 Euros. Now I'm curious if you think a full service on the AP would be in the same ballpark.

Thanks a lot!