Lantis - when I bought one of these, I did open the case back and the movement was identical to the photo that was provided on the dealers website. But, as many have mentioned before, if it is a 2824 then I would not be too worried about it. The decoration is really not relevant and not worth the hassles involved in sending it back and waiting for another one.
However.... if it is a clone movement, but you paid the higher price for a swiss one, then I would think you have reason to complain. Just my 0.02