These UK based suppliers can drop ship, have watches, but sorry, none of the brands you mentioned. They can send internationally, you may want to make use of them :)Link hidden: Login to view Link hidden: Login to view
This one has the brands you are interested in, is UK based, can send internationally, but does not drop ship -Link hidden: Login to view Link hidden: Login to view
I don't think Rolex will ever be available for wholesale, nor for drop shipping.
Let us know how you get on and if you need further help. Cheers! :)