First link - Casio with winder for the hands? I think not.
second link - It has that not crisp enough look on the digits, the lettering around the bezel and the moulding itself.
I find it difficult to believe the number of sellers of "genuine" new G-Shocks that have conveniently lost boxes, tins, tags or instructions. And there is a trade in empty Casio tines and boxes too.
Well spotted!