Seiko Astron
| Brand | Seiko |
| Name | Astron |
| Reference | SAST021 |
| Diameter | 47 mm |
| Material | Stainless Steel Case, Stainless Steel Strap |
| Features | Date, Perpetual Calendar, GMT, World Time, Central Seconds Hand, Water resistant to 300 ft |
| Movement | Other |
| Brand | Seiko |
| Name | Astron |
| Reference | SAST021 |
| Diameter | 47 mm |
| Material | Stainless Steel Case, Stainless Steel Strap |
| Features | Date, Perpetual Calendar, GMT, World Time, Central Seconds Hand, Water resistant to 300 ft |
| Movement | Other |
