I've received a GP from my father but sadly he never kept good care of this particular watch (read: scratches on crystal, missing original strap/buckle) or his records attributed to it. I am having some difficulty placing the model after a pretty thorough scouring of the web and thus I am hoping the knowledge base here might be able to help. I am not confident in opening the back so I don't have a photo of the movement but what I've been told is that it is an 18k case and it was purchased in 1982.
In addition to the help in identifying this watch, I am looking for some advice on how much money I should sink into servicing it/replacing parts.
Thanks for your time!
For ease, the back is stamped with "F" with "4457 WF" underneath.