The Seiko 8N21-5000 is a watch model based on the 8N21 movement.
Parts List
| SA0A49S20A | crystal |
| 30M91NA1 | crown |
| 0F240BAA3 | case back gasket - case back gasket |
| 0H2400B01 | case back gasket - case back gasket |
| Z1647 | band - metal band |
| Z1648 | band - metal band |
| 09SC21VG | others - second hand |
| DZ0040B01 | others - crown and stem gasket |
| 09TC6DGM | others - minute hand |
| 81180249 | others - bracelet fixing pipe |
| 81610299 | others - bracelet fixing pin |
| 0351384 | others - winding stem |
| 82852070 | others - case ring |
| 8N215000 | others - case back |
| 8N2150006Y | others - case |
| 8N215000XH | others - case |
| 8N215000XN14 | others - dial |
| 8N215000XS14 | others - dial |
| 8N2163 | others - machine code |
| 09TD6AJH | others - hour hand |
Other models with the same movement