Seamaster 120- where to pay attention to?

Make sure you do your research first. That ones fake.

This thread is good reading.

https://omegaforums.net/threads/my-...ers-what-to-look-for-and-what-to-avoid.38032/

Autos are probably more desirable than the manual winds but overall condition abs originality are the most important factors. Also make sure the bezel is present as they’re almost impossible to source on their own.

Welcome in the world of the 120. Be very careful. Minefield

Yeah, you are brave wanting to tread into shark infested waters. We actually see far more fakes pop up for sale than real ones. The thread posted above is about as close to gospel as you will get. If it looks too good to be true, it is most assuredly is.

It’s a great PSA thread, and there is no real grey area with these- dials looked like this, bezels looked like this- no, that’s not a prototype or rare variant.
Keep in mind that cosmetic parts (like bezels and dials) are NLA- period (new hands are available but are white luminova). We can hope and pray all we want that Omega will make service parts for these (the movements are standard so those are easy to fix), but they clearly couldn’t give a shit- these watches are orphaned. Functionality doesn’t matter when hunting for these- they will all need service- it’s the holy trinity that matters, condition, condition, condition.