The Seiko 1N01-0E40 is a watch model based on the 1N01 movement.
Parts List
| 180A08JB0A | crystal |
| 180A08JB | crystal |
| 30MA2NA1 | crown - crown |
| 0F180NA1S | case back gasket - case back gasket |
| 0F180NA1 | case back gasket |
| B5736L | band |
| B5736L-LKG | band - link |
| B5736L-BK4G | clasp - clasp |
| 3BA075F0BNG | others - second hand |
| 1BF047L0BDG | others - hour hand |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81180229 | others - bracelet fixing pipe |
| 82823860 | others - case ring |
| 1N010E40 | others - case back |
| 1N010E40MJZ | others - case |
| 1N010H78XS14 | others - dial |
| 1N010H88XS14 | others - dial |
| 1N019 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 2BF070L0BDG | others - minute hand |
| 07T55DGM | others - minute hand |
| 07T55DGH | others - hour hand |
Caliber 1N01
