The Grand Seiko V.F.A. 4580-7010 (ref. 4580 020) is a Hi-Beat manual wind watch of the 45GS family. There is only one version of this reference, with a stainless steel case and a white dial.
This reference never appeared in the Seiko Japanese catalogs, but it was presented in the 1970 Seiko Special Luxury catalog.
Stainless Steel
| Ref. | 4580 020 |
| Case-movement ref. | 4580-7010 |
| Year | 1970 |
| Caliber | 4580A |
| Jewels | 25 |
| Bph | 36,000 |
| Type | Hi-Beat Manual Wind |
| Family | 45GS |
| Branch | Daini Seikosha |
| Material | Stainless Steel |
| Crystal | Hardlex |
| Size | Diameter: 36.5 mm Lug width: 18 mm |
| Complications | – |
| Hacking | Yes |
| Dial code | JAPAN 4580-7010T |
| Technical info | – |
| Catalogs | – |