First off, let me say that I have read the stickies, so I know not to ask how much these are worth, and do not expect miracles when it comes to ID-ing these exact models since I don't have the serial numbers.
What I am asking for are any general ideas of the model, approximate decade they might have been manufactured, if anyone has an opinion on whether or not it would be worth getting them serviced/overhauled in order to sell.
These are from my father in-law's collection. I think most of these were given to him as opposed to being purchased directly by him, and he is curious to know what he has. If anyone thinks it would be worth opening the cases to ID the movement because it might be rare or potentially valuable, let me know and I might be able to report back here with serial numbers.
Looking forward to your thoughts! Thanks!