An old DW-5600c.
But this guy is in really really great condition. I would say 90%.
Crystal is scratch free. And the case back has only some fine hairlines.
Great piece my friend!!
You prefere the square g's aswell? I love the classic square look, i beleave dont fix what isnt broken and thats the case with yours and my GW-M5610, which is based on the first ever G.