The Seiko 2C21-0330 is a watch model based on the 2C21 movement.
Parts List
| 240A02JN02 | crystal |
| 240N09JN00 | crystal |
| 30NA7NA1 | crown - crown |
| 30NA7NS1 | crown - crown |
| 0G2450B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| GK08B | band - band |
| GK09B | band - band |
| 10SC27T1 | others - second hand |
| 10SC27T2 | others - second hand |
| 3AA125F3A6S | others - second hand |
| 10P53AAH | others - hour hand |
| 10P53AAM | others - minute hand |
| 10P53NSH | others - hour hand |
| 10P53NSM | others - minute hand |
| 3AA125F3ANG | others - second hand |
| 0351226 | others - winding stem |
| 82714290 | others - case ring |
| 2C210330BE | others - case |
| 2C210330F5 | others - case |
| 2C2110 | others - machine code |
| 2C211200XN19 | others - dial |
| 2C211200XS19 | others - dial |
| A150BS | others - push pin |
Caliber 2C21
