The Seiko 1N01-0B80 is a watch model based on the 1N01 movement.
Parts List
| 180W40JM01 | crystal |
| 180W40JM | crystal |
| 30MA2NA1 | crown - crown |
| 0A1700B01 | case back gasket |
| EZ0035B0 | case back gasket |
| BHA50S | band |
| 3BA075F0BNG | others - second hand |
| 0351807 | others - winding stem |
| 82822060 | others - case ring |
| 1N010B80 | others - case back |
| 1N010B807N | others - case |
| 1N010C90X914 | others - dial |
| 1N019 | others - machine code |
| A120AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
| 2BE075L0BDG | others - minute hand |
| 07T34DGM | others - minute hand |
| 1BE045L0BDG | others - hour hand |
| 06T36DGH | others - hour hand |
Caliber 1N01
