Remove the watch and hand it to the rep, they know what to look for. Once they insert the serial numberS of the watch into their internAl system they will let you know if it's authentic or not. If it's fake, no worries, they'll just hand it back to you and you go your way.
How do I find out what year my Rolex is?
To identify the year of your Rolex watch, simply take a look at your warranty card. There, the person who has sold the watch will have written the year and date that the watch was purchased.13 Jan 2022