Help, how to know before I sell a item, of it's real?

Question

Hello I've received what I believe to be a real Rolex men's watch but I've checked every way I know to check it, but how to be sure?

disneyshopper · Answer

If your watch meets the requirements, you will see an Authenticity Guarantee on the listing. When the buyer pays, you print the shipping label to be sent to the authenticator. If it passes the test, the item is sent onto the buyer. If it does not pass the test, the buyer is refunded and the item is returned to you.

https://www.ebay.com/help/selling/selling-tools/ebay-authenticity-guarantee?id=4644&st=3&pos=1&query=eBay%20Authenticity%20Guarantee&intent=Authenticity%20policy&context=DEFAULT_SELLER&lucenceai=lucenceai&docId=HELP1344