The 50's were one of many golden periods for Omega in my opinion. They were producing quality watches with wonderfully robust and even detailed movements. If you want to spend a bit more, or take on a so-called "project" watch, look for an Omega Constellation from the 50's, especially with the "pie-pan" dial (you'll know it when you see it). Omega offered this early incarnation of the Constellation in SS, gold/ss, gold, and even rose gold, and they were certified chronometers. Another less expensive option would be a Seamaster automatic from the 50's. In stainless, it is the essence of simplicity with a workhorse movement. I have a stainless Seamaster from the mid-50's that I paid $90 for at an auction, spent about $200 restoring, slapped an alligator band on, and it gets as many compliments as my vintage Rolex Oyster. Besides, Omegas are for industrialists, and Rolexes are for whores and movie stars
(Isn't that the old line about Ferraris vs. Maseratis?
). An old watch can have problems, sure, but if they are checked over and taken care of (and actually, I would go as far as saying that a vintage Omega doesn't need much care), they will last a very very long time. Some of the detail in these vintage movements makes some big name modern movements look like the watchmaker filed the parts with his feet. Good luck, go for it, the problems can always be fixed and usually not for a ton of money. Soend a little time on the Timezone forums both before and after you buy.