A friend 'o mine just got a Tectoy Skeleton Saturn. It's pretty much the Japanese unit, with the region modified to US and the color system modified to PAL-M (basically, NTSC with PAL colors). The logo is the Japanese one, and also is the BIOS.
Ah, it's prolly a model2 too. Tectoy's models always reflected the Saturn models being sold in US (mine is identical to the US model1 Saturn), then when the US produciton halted, they started selling the Japanese models. There are both white and skeleton Tectoy Saturns (but only skeleton ones are made nowadays, I think).