The Seiko 1N00-6A90 is a watch model based on the 1N00 movement.
Parts List
| BA0A16JR02 | crystal |
| BA0A16JR | crystal |
| 6M35A9NNG1 | crown - crown |
| 30MK8NA4 | crown - crown |
| 6M35A9NN | crown |
| 0E190NA1S | case back gasket - case back gasket |
| DZ0041B0 | case back gasket |
| ZFA21K | band |
| ZFJ25K | band |
| ZFZ10K | band |
| 1CH037A1BAA | others - hour hand |
| A100BS | others - push pin (for mb) |
| 1N003H98XS19 | others - dial |
| 1N003J08XG14 | others - dial |
| 1N003J08XL14 | others - dial |
| 1N003J08XS14 | others - dial |
| 1N006A90 | others - case back |
| 1N006A9025Y | others - case |
| 1N006A9025Z | others - case |
| 1N009 | others - machine code |
| 82834540 | others - case ring |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| DZ0041B01 | others - crown and stem gasket |
| 2CH057A1BCA | others - minute hand |
| 2CG055L0BDG | others - minute hand |
| 1CG037L0BDG | others - hour hand |
| 05Y07DGH | others - hour hand |
| 05Y07DGM | others - minute hand |
Caliber 1N00
