It looks to have lume cut outs in the hour markers, therefore you can safely assume it started life with lumed hands too.
Its an late 1950s Seamaster in jumbo size (36mm), often called fat lugs / beefy lugs due to its thich lugs even though the smaller version (34mm) has even thicker and beveled lugs.
Gold cap, don’t think the crown is original to the model. At least the smaller version should have the ”clower crown”.
As mentioned above the dial Probably had lume originally and if so the hands should have had lume aswell.
I think the seconds hand is a non-Omega replacement
...None of you guys wonder about the full rotor 501 movement in a case with a screw-down back? 😕