The Seiko 1N00-0G20 is a watch model based on the 1N00 movement.
Parts List
| 185W14JN01 | crystal |
| 185W14JN | crystal |
| 30MA2NA1 | crown - crown |
| 0A1600B01 | case back gasket |
| EZ0035B0 | case back gasket |
| WHA37K | band |
| WHJ45K | band |
| A120BS | others - push pin (for lb) |
| 1N000G20 | others - case back |
| 1N000G2075Z | others - case |
| 1N002B58XB14 | others - dial |
| 1N002B58XS24 | others - dial |
| 1N009 | others - machine code |
| 82822700 | others - case ring |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 2CH070A2BNG | others - minute hand |
| 1CH050A2BNG | others - hour hand |
Caliber 1N00
