I'm thinking too about a problem during the coating, I don't have picture of it yet and I believe my 2MPixel cam phone will hardly capture the blue hue.
At first I tought the crystal was stained, like a bit greasy, but when I tried to remove the stain with a microfiber cloth, I notice the "stain" was bigger: it was in fact the AR coating that I was removing!!!!
I emailed the seller about it, it's just weird and a shame, it is one of the best watch I received out of the box, not a single fault on it (beside the date not being properly aligned of course). No answer so far.
I believe the crystal on the bentlley can be removed with the bezel making it easy to replace for anyone?
Thanks for the advices guys,
Halley