The first is in my opinion original, but not sure if something was changed: The second seems fake to me. There is missing "MADE" after "SWISS" and the crown is probably not even from Omega: Can you help me with this? Thanks. About me: I am 26 years old, working as an engineer in Germany. Do not have a lot of experience with watches, had only few automatic watches so far. Interested in buying some older Omega automatic watches.
Welcome to the forum. Set yourself a avatar a quick hello and a can you help please. Reading this will get you mor help https://omegaforums.net/threads/anyone-that-wants-more-help-post-photos-not-links.52494/
Second one looks like the dial has had some water issues and the movement is dirty so I would pass on it Not big on Geneve knowledge...but First looks OK touch pricey , service will be needed as there is evidence of rotor bearings issues ( could be older marks on the rotor and caseback )