If it is a watch, that is the correct address - I believe it is in Ruislip.
The buyer's name and any Ebay referenece should be included in the address so that the watch and the buyer can be identified by the authentication centre.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
