The Seiko 2C20-0490 is a watch model based on the 2C20 movement.
Parts List
| 205N41JN00 | crystal |
| 30N77NA1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0G2070B01 | case back gasket |
Caliber 2C20
Seiko 2C20-0490 Watch Guide
The Seiko 2C20-0490 is a watch model based on the 2C20 movement.
| 205N41JN00 | crystal |
| 30N77NA1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0G2070B01 | case back gasket |