The Seiko 2C21-5150 is a watch model based on the 2C21 movement.
Parts List
| SA3W81HN00 | crystal |
| 32M15NA1 | crown - crown |
| 0F160BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |
Caliber 2C21
Seiko 2C21-5150 Watch Guide
The Seiko 2C21-5150 is a watch model based on the 2C21 movement.
| SA3W81HN00 | crystal |
| 32M15NA1 | crown - crown |
| 0F160BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |