The Seiko 1N00-1D20 is a watch model based on the 1N00 movement.
Parts List
| 215A02JN02 | crystal - crystal |
| 30MA2NA1 | crown - crown |
| 30MA2NS1 | crown - crown |
| 0F200NA1S | case back gasket - case back gasket |
| 0F200BA1S | case back gasket - case back gasket |
| WE81BZ | band - band |
| WN92BB | band - band |
| WG13BZ | band - band |
| WF97BZ | band - band |
| WX57BZ | band - band |
| WAZ1AW | band - band |
| 1CF060A1BNS | others - hour hand |
| 2CF090A1BNS | others - minute hand |
| 2CF090A1BNG | others - minute hand |
| 2CX095A0BNG | others - minute hand |
| 1CX065A0BNG | others - hour hand |
| 1CF060A1BNG | others - hour hand |
| A130AS | others - push pin (for lb) |
| 1N000JL0XN19 | others - dial |
| 1N001J10X929 | others - dial |
| 1N004L90XG19 | others - dial |
| 1N004P30XS19 | others - dial |
| 1N004V10XS19 | others - dial |
| 1N004W20XG19 | others - dial |
| 1N009 | others - machine code |
| 1N001D2075C | others - case |
| 1N001D2079 | others - case |
| 1N001D2079A | others - case |
| 82821480 | others - case ring |
| 0351807 | others - winding stem |
| 1N001D2075D | others - case |
| 1N001D2075E | others - case |
| 1N001D2075K | others - case |
| 1N001D2075B | others - case |
| 1N001D2075 | others - case |
| 1N001D20 | others - case back |
| EZ0035B01 | others - crown and stem gasket |
| 2CB090A0BNG | others - minute hand |
| 1CB055A2BNG | others - hour hand |
Caliber 1N00
