The Seiko 1N00-5G40 is a watch model based on the 1N00 movement.
Parts List
| REEN30JK01 | crystal |
| REEN30JK | crystal |
| 30M62NA3 | crown |
| 30M62NN3 | crown |
| 30MB4NA1 | crown |
| 0H2001B03 | case back gasket |
| 0H2001B0 | case back gasket |
| ZKA32B | band |
| ZKA32K | band - band |
| 2CH052A2BAA | others - minute hand |
| 1CH032A0BAA | others - hour hand |
| 0351807 | others - winding stem |
| 82832200 | others - case ring |
| 1N005G4025Y | others - case |
| 1N005G40 | others - case back |
| 1N002C88XB14 | others - dial |
| 1N002C98XS19 | others - dial |
| 1N005G4025X | others - case |
| 1N005G4025Z | others - case |
| 1N009 | others - machine code |
| A140BS | others - push pin |
| DZ0041B01 | others - crown and stem gasket |
| 1CE030L0BDG | others - hour hand |
| 05Y32DGH | others - hour hand |
| 2CE050L0BDG | others - minute hand |
| 05Y32DGM | others - minute hand |
Caliber 1N00
