This is an extremely rare and again very domestic only model. Like the SG1000X it isn't just restricted to Japan
its issue was restricted to one province the Kanto Koshinetsu area. Issued in restricted numbers in one run only in 1984
it is a trem model specs as follows
Specifications
Body Agathis
Neck Mahogany Set neck
Fretboard Rosewood 22 frets dot markers 628mm scale
Headstock Gold Bound Large thistle motive model on TRC
Tuners Chrome Yamaha Diecast
Pickups 2 Unspecified Humbuckers
Controls Black Top hat 1V 1T 3 way no coil split
Nut Locking
Hardware Chrome
Bridge Locking Trem type
Pickguard None
Colours Black or Pearl White
Weight 3.9kgs
Released at 70000y
Not much more info available on this model not that we are likely to come across one.