The Seiko 4N21-0980 is a watch model based on the 4N21 movement.
Parts List
| 200A13SN02 | crystal - crystal |
| 40M0CNS1 | crown - crown |
| 40M0CNV1 | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| D0L8AB | band - band |
| D0L8CB | band - band |
| 1BG050L0BDS | others - hour hand |
| 2BG075L0BDS | others - minute hand |
| 3BA090F1BNG | others - second hand |
| 3BA090F1BNS | others - second hand |
| 0351155 | others - winding stem |
| 82832715 | others - case ring |
| 4N2109807EA | others - case |
| 4N210980 | others - case back |
| 4N2109807LA | others - case |
| 4N212030XL14 | others - dial |
| 4N212030XS13 | others - dial |
| 4N212030XS24 | others - dial |
| 4N2164 | others - machine code |
| A130BS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 1BG050L0BDG | others - hour hand |
| 2BG075L0BDG | others - minute hand |