The Seiko 1N01-0K40 is a watch model based on the 1N01 movement.
Parts List
| 180A02JN02 | crystal - crystal |
| 6M30B5NNG0 | crown - crown |
| 0F150BA1S | case back gasket - case back gasket |
| 4F70YZ | band - band |
| 3BA075F1BNG | others - second hand |
| 1AC047A1BAA | others - hour hand |
| 2AC070A1BAA | others - minute hand |
| 0351807 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 82842100 | others - case ring |
| 1N010K4001B | others - case |
| 1N010K40 | others - case back |
| 1N011P58XS14 | others - dial |
| 1N014 | others - machine code |
| T100BS | others - push pin |
Caliber 1N01
