The Seiko 1N00-5C90 is a watch model based on the 1N00 movement.
Parts List
| REDN42JK01 | crystal |
| REDN42JK | crystal |
| 30MH2NA1 | crown |
| 0H1860B01 | case back gasket |
| 0H1860B0 | case back gasket |
| ZHZ28S | band |
| ZHJ49G | band |
| 2CH045A0BAA | others - minute hand |
| 04Y26AGM | others - minute hand |
| A120BS | others - push pin (for lb) |
| 1N001B30XS19 | others - dial |
| 1N001B30XS29 | others - dial |
| 1N005C90 | others - case back |
| 1N005C9025 | others - case |
| 1N005C902E | others - case |
| 1N009 | others - machine code |
| 0351807 | others - winding stem |
| 82824120 | others - case ring |
| EZ0035B01 | others - crown and stem gasket |
| 1CH030A0BAA | others - hour hand |
Caliber 1N00
