The Guild X-702 (and X-701) were companion models to the Guild X-79 six string electric guitar. These basses were quite a departure from the more generic-looking Guild guitars produced around the same time. The X-79/X-702 were pretty extreme in terms of design, and perfect for the early eighties metal scene. The dual pickup X-702 bass was, functionally, very similar to the Guild SB-202, or even the Guild B-302 - although very different in appearance. All were equipped with a single DP-8 single coil pickup, BT-4 bass bridge, and typical Guild set-neck construction.
The following text is taken from the 1982 Guild catalog
The X-79, X-79-3 and X-702 were designed for the musician who's tired of looking and sounding like everyone else. If that's the way you've been feeling, these instruments were made for you