Yesterday I bought my first replica watch, A Hublot Big Bang Limited gray. I really like the feel of the watch, and the looks of it too. I bought it in a shop In Saigon, and since I believed this to be a 400 USD copy, when it is actually a 300 USD copy, I ended up paying a bit to much, but I would never have bought this watch on the internet, but it looks great in real life, so I am still very happy. I have only one issue. The watch is very accurate when sitting on a desk. Or t least i checked it for 9 hour during the night and it was perfect. However when I wear it it runs fast. Walking around with it for 3 hours this morning made it go 5 minutes to fast....after only 3 hours.... It is a replica, and I can accept to have to set the watch now and then, but 5 minutes in 3 hours feels a bit too much. I have searched the forums but not come up with anything on this. Is this what you have to expect, or are there simple modifications that can be made? Maybe the heat here is a problem, and it will slow down going back to a colder climate?