The Seiko 2620-5510 is a watch model based on the 2620 movement.
Parts List
| SA9N99KN00 | crystal |
| 35NB3NS1 | crown |
| 35NB3NA1 | crown |
| 012750B01 | case back gasket |
| DH0070B01 | case back gasket - crown and stem gasket |
Caliber 2620
Seiko 2620-5510 Watch Guide
The Seiko 2620-5510 is a watch model based on the 2620 movement.
| SA9N99KN00 | crystal |
| 35NB3NS1 | crown |
| 35NB3NA1 | crown |
| 012750B01 | case back gasket |
| DH0070B01 | case back gasket - crown and stem gasket |