The Seiko 2C20-5540 is a watch model based on the 2C20 movement.
Parts List
| SA3W75HN00 | crystal |
| 32M05NA1 | crown |
| 0F180BAA1 | case back gasket - case back gasket |
| EB0055B01 | others - crown and stem gasket |
Caliber 2C20
Seiko 2C20-5540 Watch Guide
The Seiko 2C20-5540 is a watch model based on the 2C20 movement.
| SA3W75HN00 | crystal |
| 32M05NA1 | crown |
| 0F180BAA1 | case back gasket - case back gasket |
| EB0055B01 | others - crown and stem gasket |