The Seiko 1N00-5E90 is a watch model based on the 1N00 movement.
Parts List
| RE4W34JH01 | crystal |
| RE4W34JH | crystal |
| 30MA2NA1 | crown - crown |
| 0A1500B01 | case back gasket |
| EZ0035B0 | case back gasket |
| Q5057G | band |
| Q5057C-LKG | band - link |
| Q5057G-LKG | band - link |
| Q5057C | band |
| Q5057G-BK4G | clasp - clasp |
| Q5057C-BK4G | clasp - clasp |
| 1CE022L0BDG | others - hour hand |
| 2CE035L0BDG | others - minute hand |
| 0351807 | others - winding stem |
| 82822040 | others - case ring |
| 1N001K30XG15 | others - dial |
| 1N001K30XG25 | others - dial |
| 1N001K30XS15 | others - dial |
| 1N005E90 | others - case back |
| 1N005E907E | others - case |
| 1N005E90RH | others - case |
| 1N009 | others - machine code |
| B080AS | others - push pin |
| Q5057C-EPG | others - endpiece |
| Q5057G-EPG | others - endpiece |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1N00
