It's not necessarily a Geneve model. It may have been but it doesn't match any Swiss Geneve design I can think of, not in itself conclusive but because it has been redialled (definitely not probably) it is hard to be certain what was there before. Up until the mid 1960s, Geneve branding was used for Omegas actually assembled in Geneva, this obviously wasn't. It certainly wasn't a Seamaster since it has no water proofing. There is a good chance it wasn't labelled with any sub brand, just Omega Automatic.
I've just noticed there is something funky going on with the crystal too. It looks like there is no rehaut since you can see the edge of the dial. Perhaps at some point a non original crystal was fitted, or the rehaut not replaced when the dial was painted.