The Seiko 4N20-0300 is a watch model based on the 4N20 movement.
Parts List
| 175A02SN02 | crystal - crystal |
| 30M57NA1 | crown - crown |
| 0H1700B01 | case back gasket - bezel gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| DZ14B | band - metal band |
| DZ15B | band - metal band |
| 2CE060L0BDG | others - minute hand |
| 0351155 | others - winding stem |
| 81181459 | others - bracelet fixing pipe |
| 81604219 | others - bracelet fixing pin |
| 82841070 | others - case ring |
| 4N200300 | others - case back |
| 4N20030026 | others - case |
| 4N200300FY | others - case |
| 4N200540XA15 | others - dial |
| 4N200540XA25 | others - dial |
| 4N2061 | others - machine code |
| 06Y61JGH | others - hour hand |
| 06Y61JGM | others - minute hand |
| 06Y05DGM | others - minute hand |
| 06Y51JGH | others - hour hand |
| 06Y51DGH | others - hour hand |