The Seiko 1N00-5H80 is a watch model based on the 1N00 movement.
Parts List
| ES0A08JN02 | crystal |
| ES0A08JN | crystal |
| 30MA2NA1 | crown - crown |
| 0A1500N01 | case back gasket |
| EZ0035B0 | case back gasket |
| BHJ88G | band |
| BHA58G | band - leather band |
| 1CE045L2BDG | others - hour hand |
| 2CE065L2BDG | others - minute hand |
| 2CB062A0BNG | others - minute hand |
| 1CB042A0BNG | others - hour hand |
| 0351807 | others - winding stem |
| 06Y18DGH | others - hour hand |
| 1N002G20XG14 | others - dial |
| 1N002G30XB14 | others - dial |
| 1N002G30XG14 | others - dial |
| 1N005H80 | others - case back |
| 1N005H8075 | others - case |
| 1N009 | others - machine code |
| 82832540 | others - case ring |
| A120AS | others - push pin |
| 06Y18DGM | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1N00
