As far as "24" is concerned, I have a feeling you could be mistaken. The only character who's ever worn a Rolex (albeit a fake Submariner) is Jack Bauer himself, in Seasons 1 and 3. Jack's girlfriend, in Season 4 Audrey Raines, wears a Cartier, but if you're thinking of the main terrorist's wife; Dina Araz, her watch is entirely the wrong shape to be a Rolex. Sorry to disappoint you.