The Seiko 2C21-5080 is a watch model based on the 2C21 movement.
Parts List
| ES6W99HE10 | crystal |
| 32M15NA1 | crown - crown |
| 32M15NS1 | crown |
| 0F155BAA3 | case back gasket - case back gasket |
| EB0055B01 | others - crown and stem gasket |
Caliber 2C21
Seiko 2C21-5080 Watch Guide