The Seiko 2C20-5940 is a watch model based on the 2C20 movement.
Parts List
| ESWN41JN00 | crystal |
| 32N09NA1 | crown |
| 0F130NA11 | case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
Caliber 2C20
Seiko 2C20-5940 Watch Guide
The Seiko 2C20-5940 is a watch model based on the 2C20 movement.
| ESWN41JN00 | crystal |
| 32N09NA1 | crown |
| 0F130NA11 | case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |