The Seiko 8620-5090 is a watch model based on the 8620 movement.
Parts List
| ESEN57LN01 | crystal |
| 35NG7NS1 | crown |
| 35NG7NA1 | crown |
| 0H2750B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
Caliber 8620
Seiko 8620-5090 Watch Guide
The Seiko 8620-5090 is a watch model based on the 8620 movement.
| ESEN57LN01 | crystal |
| 35NG7NS1 | crown |
| 35NG7NA1 | crown |
| 0H2750B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |