The Seiko 5E21-6C00 is a watch model based on the 5E21 movement.
Parts List
| 280WB8SN02 | crystal - crystal |
| 280A02SN02 | crystal - crystal |
| 6K30A0SNG1 | crown |
| 0F250NA1S | case back gasket |
| DAP7BW | band - band |
| JK47A | band - band |
| DAP7BW-BJ00 | clasp - buckle |
| 3AA125F0ANG | others - second hand |
| 1BA085A1BAA | others - hour hand |
| 1BB075A8BAB | others - hour hand |
| 1BD080A2BAA | others - hour hand |
| 2BA120A0BAD | others - minute hand |
| 2BB110A6BAB | others - minute hand |
| 2BD115A2BAA | others - minute hand |
| 3AA125F0AAB | others - second hand |
| 0351624 | others - winding stem |
| 82812640 | others - case ring |
| 5E216C0075 | others - case |
| 5E216C00 | others - case back |
| 5E216C0075A | others - case |
| 5E216C0075B | others - case |
| 5E216C0075D | others - case |
| 5E216C0075E | others - case |
| 5E215 | others - machine code |
| 5E216B60XG14 | others - dial |
| 5E216B70XS14 | others - dial |
| 5E216D90XS14 | others - dial |
| 5E216E90XG14 | others - dial |
| 5E216G40XS14 | others - dial |
| 5E216G50XG14 | others - dial |
| 87020283 | others - back plate |
| A180BS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |