I thought folks here would appreciate this story. In the 1980s, my dad worked for COMEX as a deep sea diver on oil rigs in the North Sea and the Gulf of Mexico. They were issued Rolex watches made specifically for COMEX, which divers then had the option to buy at a reduced price. My dad ended up buying the one he had used when diving. I can't remember what he paid for it exactly but something ridiculously low like $100-200. He wore this watch every day for 25+ years and only realized how prized and expensive they had become when watch connoisseurs started randomly making offers to buy it. He said one time somebody at work interrupted a big meeting because he caught a glance of his watch and made him an offer in front of everyone. My dad absolutely detests that kind of attention and did not like owning something that expensive (let alone wearing it), so he eventually sold it.
I don't know to be honest. I just googled it and almost fainted. Also not totally sure if it was a Submariner or a Sea Dweller.