The Seiko 1N01-0F20 is a watch model based on the 1N01 movement.
Parts List
| 160A02JN02 | crystal - crystal (inorganic) |
| 160A02JN | crystal |
| 30MA2NA1 | crown - crown |
| 0F150NA1S | case back gasket - case back gasket |
| 0F150NA1 | case back gasket |
| 4049KE | band |
| 4049KE-LKG | band - link |
| 4049KE-BK4G | clasp - clasp |
| 1BF045L0BDG | others - hour hand |
| 2BF065L0BDG | others - minute hand |
| 3BA075F0BNG | others - second hand |
| 06TB8DGH | others - hour hand |
| 0351807 | others - winding stem |
| 82821520 | others - case ring |
| 1N010F20 | others - case back |
| 1N010F2075Z | others - case |
| 1N010K08XB14 | others - dial |
| 1N010K08XG14 | others - dial |
| 1N019 | others - machine code |
| T060BS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
| 06TB8DGM | others - minute hand |
Caliber 1N01
