The 671/12 is a 12-string Concord series acoustic guitar model introduced by Ibanez in 1974. It was crafted in Japan.
The 671/12 features a dreadnought body with a fine grained spruce top on a maple and jacaranda back with wood strips and flamed maple sides with a high gloss finish. The round soundhole is trimmed with a wooden herringbone marquetry rosette and a red tortoise shell pickguard. The maple neck has a 21-fret maple fingerboard, black dot position markers and white side dots and a blonde headstock. Components include a plastic saddle in an elegant rosewood bridge with white bridge pins with black dots, a plastic nut, and gold plated machine heads.
The 671 is a similar six-string model. The 670/12 is a related model with flamed maple back and sides.