Couple of watches

My grandpa/grandma had a couple of watches that my dad gave to me a while back they have just been sitting in a case, i am trying to move up north so been selling things off on ebay i own but i have no idea about watches and cant find a good reviewed watchmaker in my immediate area. anyways my grandpa owned a laundromat and if he found things in peoples pockets they would mysteriously disappear lol and when i knew him he wasn't a very nice guy. a couple things i got passed down from him turned out to be fakes (coins and such) anyways just any insight into these would be appreciated.

edit they have been sitting in a closet for at least 20 years, the "seamaster" one still runs but is missing the side piece the others dont idk if that matters lol

thank you very much for the time taken to look at them and the advice, i really appreciate it, ill probably be putting them up this weekend if anyone is interested.

any idea what to call the third watch? i had a hell of a time looking for something similar.