@Drizzle: first and foremost welcome to the board!
Unfortunately there's no straight answer to your question. Please follow Ilsteve80's advice, do some research and find the best Sub you like from the best dealer for you.
I'm really no Rolex guy so I can't help you specifically, but in general there are different versions of reps you can buy from different dealers. No rep version is 100% accurate, so you need to study wich model fits your needs best.
Enjoy!