But keep in mind that purchasing the watch at a price lower that the RRP will auto voit your warranty with most, if not all companies. .
That is not true and almost certainly would be illegal, they are not even allowed to insist on RRP but they do this in an implied ammner rather than by contract
The discount watches that may have no warranty are the ones that have found their way onto the grey market, these often have their serial number removed so that the manufacturers cannot trace the AD that supplied them