It's not a marine radio, the TM-D710 is always an amateur radio AFAIK. A couple of things I do notice.
The distributor is in the United Arab Emirates. Things get shipped all around the world so that's probably a "whatever" as long as they're a real place.
It may be a grey market radio if they're not a legitimate Kenwood dealer. Again, "whatever" as long as it works and you don't need the warranty.
I might be concerned that it's a counterfeit.
The radio has been out of production for I think at least 3 years, maybe more. Where did this is magical stock come from? That's kind of curious.
Another thing is the TM-D710GAK model.
The TM-D710 is the base model, 'G' indicates GPS is installed and 'A' indicates an American (as in North America) model. There's a 'E' model (e.g. TM-D710GE) that would have been the EMEA model, that's the Europe, Middle East, Asia version.
But I can't figure out what the 'K' means, if anything. The only place I found a reference to that full model was on the Kenwood UK website, who I would have thought would have gotten the the TM-D710GE model. I don't know if that is important or not. It might just be the full model number of the radio.
BTW, getting the EMEA version of a radio is a mixed bag. Stock they'll have the wrong band splits and frequency transmits. But the radios themselves are usually the same or at least very closely the same hardware with the differences being in firmware or even just which configuration jumpers are installed. So you can often make a 'E' model into an 'A' model with a soldering iron or in a few cases flashing the NA firmware.
I dunno, a $600 dice roll?