Made in Japan as part of the professional grade "Musician" series of basses, this is a 1983 model that was factory loaded with a Super J6 dual coil humbucker. Neckthrough construction with ash wings sandwiched between two layers of mahogany on a maple and walnut neck, 24-fret rosewood fingerboard and darkened ash headstock, this one weighs 3.9kg's. 
Looks to be all original as pictured except for a set of Gotoh tuners, received a full professional setup and service prior to listing. The neck is straight and the truss works perfectly, the frets are shiny and smooth with plenty of life left.