The Seiko 2C21-5340 is a watch model based on the 2C21 movement.
Parts List
| K05N69JN00 | crystal - crystal |
| 30NA7NA1 | crown - crown |
| 0F150NA11 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| MK35B | band - band |
| 05S01DGM | others - minute hand |
| 05SS03NG | others - second hand |
| 06S11DHH | others - hour hand |
| 0351225 | others - winding stem |
| 2C21534025 | others - case |
| 82720830 | others - case ring |
| 2C210870XS14 | others - dial |
| 2C2110 | others - machine code |
| A100AS | others - push pin |
Caliber 2C21
