The Seiko 4N01-0090 is a watch model based on the 4N01 movement.
Parts List
| 165P01HN03 | crystal |
| 165W05HN01 | crystal |
| 165P01HN | crystal |
| 165W05HN | crystal |
| 32M67NN1 | crown |
| 0F140BAA | case back gasket |
| 0F140BAA3 | case back gasket - case back gasket |
| 86592190 | crystal gasket |
| Z5382G | band |
| Z5382G-LKG | band - link |
| Z5382G-BK7G | clasp - clasp |
| 06T05NGM | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 1BA042A1BNG | others - hour hand |
| 2BA065A1BNG | others - minute hand |
| 1BC045A1BNG | others - hour hand |
| 2BC065A1BNG | others - minute hand |
| 07SC25NG | others - second hand |
| DZ0040B01 | others - crown and stem gasket |
| 06SC11NG | others - second hand |
| 06T05NGH | others - hour hand |
| 0351155 | others - winding stem |
| 82841570 | others - case ring |
| 4N010090 | others - case back |
| 4N01009075 | others - case |
| 4N010160XB14 | others - dial |
| 4N010160XG14 | others - dial |
| 4N010170XS14 | others - dial |
| 4N0161 | others - machine code |
| B080BS | others - push pin |
| 06T09NGM | others - minute hand |
| 06T09NGH | others - hour hand |