5-string · 5
Five-string J-style bass from Saito's S Series and the more modern of the pair. 34-inch scale, 21 Jescar FW-57110 nickel-silver frets and a flatter 12-16 inch compound radius, 47.6mm nut. Alder two-piece body, hard maple neck with a Classic JB grip, Indian rosewood or hard maple fingerboard. SAYTONE hand-wound Five Vantage+ pickups into 2 volume and 1 tone, GOTOH GB528-5 tuners and Saito's own VTB-5 bridge at 19mm pitch. Strung with D'Addario EXL165-5 (45-135). Urethane matte finish, aluminium neck joint plate, rolled fingerboard edges, Luminlay side position dots, 19mm string pitch, chrome hardware, SHB130 black semi-hard case. Built to order by Saito Gakkikoubou Inc. in Kawaguchi, Saitama, Japan — body colour is chosen on the order form and no list price is published.
| Strings | 5 |
| Body | Alder, 2-piece, 42mm thick, Classic body shape |
| Neck | Hard maple, Classic JB grip (22mm at 1st fret, 25mm at 12th) |
| Fingerboard | Indian rosewood or hard maple, rolled edges, Luminlay side dots |
| Neck Pickup | SAYTONE hand-wound Five Vantage+ set |
| Bridge Pickup | SAYTONE hand-wound Five Vantage+ set |
| Controls | 2 volume, 1 tone |
| Bridge | SAITO VTB-5 |
| Made In | Japan |
Artists documented playing the Saito Guitars S-521bCSJ: Tomoya Ohtani.