Hi
@GusZ. The good news for you is that there are actually very few
fake Omegas. The bad news are that there are whole lot of
redialed or otherwise
put-together specimens. A put-together Omega could have movement parts from another watch, which might not mean anything as such for the value or it could have cosmetic parts that are wrong (such as dial or hands) - this will almost always mean a lower value.
The ones you picked out are all redialed, meaning that the someone (in this case the seller) took an existing watch, had the plate the dial is made on cleaned completely and then repainted to his specifications. As the models you are looking at are already quite common (as common as vintage watches ever get, that is...) and not very sought after to begin with, their worth in their current state
to a collector will be nearly zero. Parts value only, really. If you are not a collector then don't bother with our opinion and go with what you feel is right
😀
Some other good news for you - if the cost of those watches you've linked to seems fine to you then you should have an easy time affording some top notch specimens in original condition. But be advised that in order to find those, you'll need to invest some time reading up on what is correct and what isn't and then sourcing them. However, that is where the fun is
😉
In this hobby, you will either have to spend a lot of time or a lot of money.