let the watch check by another watchmaker, it sometimes happens that
complete movements are swapped, because the original is very interesting
for a collector. I do not say that your jewelry shop is a con shop, but I know that these things sometimes happen. And as it very difficult to open a Rolex case (you need a special tool) people are usually not equiped with such a tool. The con artist never gets caught.
So please have it checked, some movements are worth thousands of dollars. And if so, sue the bastard ! in your Rolex warranty papers
there is a mvmt calibre number.

let me know what happens