Well I talked to my dealer and asked him. How come he does not have the same offer and sale more watches.
His answer was that the movement may not be ETA and the that AR is applied on the outer side of the crystal, for this there is no warranty at all. By the way I have a reply from Silix he told me that the watch is 255, I can get the same one from my dealer with free shipping for 278.
I will stick with my source, he never fail me and always fix any problem with the watch for free
Regards