I just received a DW-6600 today, it is to be a work watch. Anyway, I have a Japan model of the DW-6600 and the new one has different markings on the back. Also, the wording on the back is different, it says Made in China, with a "y" under it and also the light seems a different color blue. It came in one of the old light blue Casio boxes if that helps. I'm a little concerned that it may not be real. FYI, the wording on the back is the same just not the same format, the wording on the front is the same.
Your thoughts and comments would be most appreciated.