I was shocked to see that it was not a genuine Rolex... But I had to scrutinize carefully before I told him the fact.
These are the picture I took on his watch.
The "Rolex" font is a bit not same as the original, you may compare with the Original Picture of Milgauss from Rolex Website.
The fake one does not look as shinny as the genuine one.
The above picture is the fake Rolex friend of mine bought somewhere
The Gap between Letter L and E are so close, not as the genuine one that has a bigger gap
The X of Rolex has a slimmer slash on the genuine one and the fake one has both slash of similar width
The Rolex Oyster laser making inside the bezel is not as deep and as clear as the genuine.