The Seiko 4N20-0130 is a watch model based on the 4N20 movement.
Parts List
| 105W03JN01 | crystal |
| 30MD5NA1 | crown - crown |
| 30MD5NS1 | crown - crown |
| 0H1500B01 | case back gasket - case back gasket |
| HC12A | band - other band |
| HC13A | band - other band |
| 03Y03NGM | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 82833415 | others - case ring |
| 4N200130 | others - case back |
| 4N20013076 | others - case |
| 4N2001307E | others - case |
| 4N200300XG19 | others - dial |
| 4N200300XS19 | others - dial |
| 4N2061 | others - machine code |
| 04Y21NGH | others - hour hand |