The Seiko 1N00-0D20 is a watch model based on the 1N00 movement.
Parts List
| 140W06JN01 | crystal |
| 140W06JN | crystal |
| 30MA2NA1 | crown - crown |
| 0A1500B01 | case back gasket |
| EZ0035B0 | case back gasket |
| Z5421G-LKG | band - link |
| Z5421G | band |
| Z5421G-BK4G | clasp - clasp |
| 82821520 | others - case ring |
| 1N000D20 | others - case back |
| 1N000D2075 | others - case |
| 1N001C40XS14 | others - dial |
| 1N009 | others - machine code |
| T060AS | others - push pin |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 06Y38NGH | others - hour hand |
| 2CH060A0BNG | others - minute hand |
| 1CH040A0BNG | others - hour hand |
Caliber 1N00
