The Seiko 2620-5580 is a watch model based on the 2620 movement.
Parts List
| RE4N21KN00 | crystal |
| 35N41NA5 | crown |
| 35NA5NA1 | crown |
| 012720B01 | case back gasket |
| DH0070B01 | case back gasket - crown and stem gasket |
| RE4N21KN00 | crystal |
| 35N41NA5 | crown |
| 35NA5NA1 | crown |
| 012720B01 | case back gasket |
| DH0070B01 | case back gasket - crown and stem gasket |
Caliber 2620
