The Seiko 4N01-0280 is a watch model based on the 4N01 movement.
Parts List
| 160A02JN02 | crystal - crystal (inorganic) |
| 30M91NS1 | crown |
| 0F150BAA5 | case back gasket - case back gasket |
| DA52A | band - metal band |
| 3BA075F1BNS | others - second hand |
| 0351155 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 82850950 | others - case ring |
| 4N0102807N | others - case |
| 4N010520XS13 | others - dial |
| 4N0161 | others - machine code |
| DZ0040B01 | others - crown and stem gasket |
| 06T31NSH | others - hour hand |
| 06T31NSM | others - minute hand |