The Seiko 2C20-0440 is a watch model based on the 2C20 movement.
Parts List
| 245N09HN00 | crystal |
| 30N77N01 | crown - crown |
| 0G2450B0A | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| 0G2125B01 | case back gasket - case back gasket |
| BMA10D | band - leather band |
| 10R13ERH | hand - hour hand |
| 10R13ERM | hand - minute hand |
| 2C2004401B | others - case |
| 2C2010 | others - machine code |
| 2C202490XB14 | others - dial |
| 82300138 | others - bezel |
| A160BS | others - push pin |
Caliber 2C20
