The Grand Seiko STGS007 is a Quartz watch introduced in 1992. The Stainless Steel case houses the 3F81 movement. The movement-case reference is 3F81-0A10.

| Ref. | STGS007 |
| Case-movement ref. | 3F81-0A10 |
| Year | 1992 |
| Caliber | 3F81 |
| Type | Quartz |
| Material | Stainless Steel |
| Limited | No |
Watches with the same movement

STGS008
Case reference: 3F81-0A20
Type: Quartz
Movement: 3F81
Case material: Yellow Gold
Year: 1993

STGS009
Case reference: 3F81-0A30
Type: Quartz
Movement: 3F81
Case material: Stainless Steel
Year: 1993