The Seiko 1N00-0H40 is a watch model based on the 1N00 movement.
Parts List
| 205N08JN01 | crystal |
| 30MF6NA6 | crown |
| 0H1860N01 | case back gasket - case back gasket |
| 0H1860N0 | case back gasket |
| WGJ43K | band |
| A110BS | others - push pin (for mb) |
| 1N000H40 | others - case back |
| 1N000H4025Z | others - case |
| 1N002H98XS14 | others - dial |
| 1N009 | others - machine code |
| 82823020 | others - case ring |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 2CA090A0BAA | others - minute hand |
| 1CA060A0BAA | others - hour hand |
Caliber 1N00
