I could be wrong on this but I think that would be considered a fake or counterfeit, not a mod (since the watch contains the logo of a company that didn't make it).
Edit Although maybe it wouldn't be since it has a cyclops, fluted bezel, and jubilee bracelet, all of which wouldn't be seen on a Grand Seiko.
Edit Although maybe it wouldn't be since it has a cyclops, fluted bezel, and jubilee bracelet, all of which wouldn't be seen on a Grand Seiko.