Electric guitar · solidbody
| Body Style | solidbody |
| Body | Basswood |
| Neck | Hard Maple |
| Fingerboard | Pau Ferro |
| Neck Pickup | P-90 Type Soapbar |
| Middle Pickup | ST Type Single-coil |
| Bridge Pickup | Twin-rail Type Humbucker |
| Pickup Switch | 3-Way mini toggle SW |
| Controls | 1 Volume, 1 Tone |
| Made In | Japan |
Artists documented playing the Sago Seed Kotetsu: Akira Mutsumuro, Kenji Todaka, Makoto Sakuramura, Sojiro Oki, Yoshiaki Manabe.