No, he's not being rude. However, a lot of scam sites post photos of the gen watch then, when you order, you either receive nothing at all, or something completely different.
Just because you've found a photo purporting to be a rep of the watch you're after does not mean that the rep exists, I'm afraid. In the case of the Cartier you're after, I think you'll find that you're out of luck - I'm not aware of a rep of that model.