I hope you get your Chanel, but between the two watches, Cartier and Rolex, there is no question as to whick one to get, Rolex, that goes for quality and resale, you can not go wrong. Don't get me wrong, Cartier makes a beautiful watch, but Cartier is known for it's jewelry design, not watch movements. See the following letter I found, very interesting!
Dear friend,
You’ve listed two timepieces that run into the thousands of dollars, and neither actually come from a watchmaking company. Richemont, who owns Cartier, lists the company not as a specialist watchmaking maison like it does with Jaeger-LeCoultre or IWC, but rather as a jewelry maison. Cartier does have a great history of watch design, and its Tank watch is nothing short of a classic. It’s just too bad it has ruined the line by using subpar movements, movements so bad no amount of history could redeem them. Cartier makes great jewelry for your wife; it doesn’t make great watches for you.
Louis Vuitton is even worse than Cartier. Neither of these two prestigious luxury brands means a thing in the watchmaking world -- forget them unless you’re looking for a diamond ring or a leather purse."