The watch looks a bit rough, most of these actually held up pretty well water resistance wise and have less wear than you'd expect as being manual wind a lot of them ended up in a drawer for a good chunk of their lives. This one looks to be in poorer condition than most I've seen.
I sold a VERY clean, fully serviced example of the no-date version for 500USD not that long ago to give you an idea on price.
https://omegaforums.net/threads/ome...al-601-serviced-and-very-clean-135-070.22961/Click to expand...