The Seiko 2C20-0030 is a watch model based on the 2C20 movement.
Parts List
| 165N19HN00 | crystal |
| 30N77NA1 | crown |
| 30N77NS1 | crown |
| 0H1450B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| 351-225 | others |
Caliber 2C20
Seiko 2C20-0030 Watch Guide