NST
Head Pro
It is a bit like cars I suppose, you can get to the golf club in a Kia or you can get there in a Ferrari, both do the job but if you can afford a Ferrari then why not? No one buys a Swiss watch to tell the time on it is a luxury item. If you are going to buy one then get the one you want, take your time choosing. There are better marques than Rolex. Panneri, Patel Philippe, Hublot and Cartier amongst them but you will pay Mega bucks for some. If I had the choice for the money I can realistic ally go to it would be the Rolex Submariner.
Cartier better than rolex, are you sure? Most Cartier are quartz.
10 a penny in any Singaporean pawn shop these days due to many Commercial Divers bad investments. And they don't hold time...
Never had problem with any of the subs I've owned over the years.