The Seiko 2C21-0050 is a watch model based on the 2C21 movement.
Parts List
| 180W13HE10 | crystal |
| 32M15NA1 | crown - crown |
| 32M15NS1 | crown |
| 0F140BAA1 | case back gasket |
| 86566710 | crystal gasket |
| HA09A | band - metal band |
| HA10A | band - metal band |
| 07S09DGH | hand - hour hand |
| 07S09DGM | hand - minute hand |
| 07SS03NG | others - second hand |
| 2C21005075 | others - case |
| 2C2100507H | others - case |
| 2C210650XG14 | others - dial |
| 2C210650XN14 | others - dial |
| 2C2110 | others - machine code |
| A110AS | others - push pin |
| 0351225 | others - winding stem |
| 82707430 | others - case ring |
| EB0055B01 | others - crown and stem gasket |
Caliber 2C21
