I bought my Rolex off a dependable Chinese watch shop in Shenzhen in 2004. It cost me 200 yuan/£13 at the time. I have born it continuously and it is still going fine. It gains approx. 15 secs a day which doesn't worry me as now I am not so late. Despite fairly rough use on the car and DIY it looks very much the same as when I bought it. The case and the glass are unmarked and the bracelet links are firm.
In hospital a few months ago and they were putting a load of syringes in me so I took the watch off and handed it to the nurse.
"I've never held £10,000 in my hand before," was his comment.