The Seiko 4N20-0830 is a watch model based on the 4N20 movement.
Parts List
| 170A19SN02 | crystal |
| 6M30B3NDG0 | crown |
| 6M30B3NDW0 | crown |
| 0F150BAA5 | case back gasket - case back gasket |
| 0H1600B01 | case back gasket - case back gasket |
| ZB44A | band - metal band |
| ZB45A | band - metal band |
| 2CG052L0BDG | others - minute hand |
| 05Y11JGM | others - minute hand |
| 05Y07JGH | others - hour hand |
| 0351155 | others - winding stem |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81605099 | others - bracelet fixing pin |
| 82841070 | others - case ring |
| 4N200830 | others - case back |
| 4N20083076 | others - case |
| 4N2008307E | others - case |
| 4N201360XG15 | others - dial |
| 4N201360XS15 | others - dial |
| 4N2061 | others - machine code |
| 81116579 | others - pipe |
| DZ0040B01 | others - crown and stem gasket |
| 1CG037L0BDG | others - hour hand |
| 05Y07DGH | others - hour hand |