The 690 is a Vintage series acoustic guitar model introduced by Ibanez for 1976. It was made in Japan.
The 690 features a grand concert body shape with a selected close-grained spruce top on a bookmatched rosewood back with wood marquetry inlay strip. The soundhole is round and trimmed with an attractive pearloid binding rosette. It has a slim mahogany neck with a 20-fret rosewood fingerboard with white dot position markers. Components include a compensated bone saddle in a none adjustable rosewood bridge with white bridge pins, a bone nut, a black pickguard and chrome plated tuning machines.
The 691 and 691/12 are related models with dreadnought bodies.