The Seiko 2P21-0C20 is a watch model based on the 2P21 movement.
Parts List
| 220N08HK01 | crystal - crystal |
| 30MA4NS1 | crown |
| 0H2100N01 | case back gasket - case back gasket |
| MK57C | band - leather band |
| 2P210C20 | others - case back |
| 2P210C204C | others - case |
| 2P210J80XS19 | others - dial |
| 2P219 | others - machine code |
| 82811380 | others - case ring |
| A100AS | others - push pin |
| 0351236 | others - winding stem |
| 09T50AAH | others - hour hand |
| 09T50AAM | others - minute hand |
| 13SC04AB | others - second hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 2P21
