I didn't even click your link but all you have to know basically is a real rolex the second hand glides smoothly and never stops moving. On a fake rolex the second hand is choppy, it stops moving for a little bit each second.
actually those more expensive rolex replicas have the second hand glide smooth as well. you have to look at many things...authentic stamps on the winder, bracelet, no markings on the back of the case and rolex does not make cases with see-thru back . also check the crystal if its just some plastic fakeness of the real deal.