The Seiko 1N01-5E90 is a watch model based on the 1N01 movement.
Parts List
| RE3A51J20A | crystal - crystal |
| 6M35Z5NNGA | crown - crown |
| 0F160BA1S | case back gasket - case back gasket |
| 4HG6ZZ | band - band |
| 3BA050F1BNG | others - second hand |
| 1AH032A1BAA | others - hour hand |
| 2AH050A1BAA | others - minute hand |
| 82842200 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0351807 | others - winding stem |
| 1N015E9001B | others - case |
| 1N015E90 | others - case back |
| 1N011R28XS14 | others - dial |
| 1N014 | others - machine code |
| S130BS | others - push pin |
Caliber 1N01
