Mehdi,
I can relate to you incredibly well. I am also 22, and a recent college grad. My parents were generous enough to give me a watch as a gift, and I elected to get a Type XX Transatlantique, for many of the same reasons you listed. I, too, know plenty of people with Rolex's, Panerai, Hublot, etc., Not to demean those brands, but they were not for me. I enjoy people asking about my watch, and I enjoy explaining some of the history and prestige associated with the brand. Needless to say, I am very pleased with my decision, and recommend you go and try a lot of brands/models. I was fortunate enough to visit many fine ADs and Boutiques before I made my decision, so I knew without question that it was the right choice for me.
Whatever you decide, wear it and enjoy it in good health.
Jon
Just to add some excitement to you confusion.



AND……
Just in case you do want a rolex try the 666 sea dweller (Vintage) Hard to find but not often seen on the wrist. Or any nice 5513.


*** The blur in the picture was a dolphin 
Best
Bill