The Yamaha SG-7A was introduced in 1966 (as the SG-7 model) and discontinued in 1971. The SG-7A has a peculiar asymmetrical body with an elongated horn on the treble side and a hockey stick style headstock, the guitar was designed with the input of Japanese Eleki legend Takeshi Terauchi.This 6-string Yamaha electric guitar has 22 frets, Gold plated Coro tremolo type tailpiece, knobs and tuners. The SG-7A had three single coil pickups, two close together at the bridge and a slanted one at the neck.

The SG7 was reissued on its 20th anniverary in 1986 and again  on its 30th anniversary in 1996. In 2000 a similar model, the SGV700 was released in a range of finishes: Black, Canary Yellow, Metallic Red and Pearl Green.