The Seiko 1N01-0ER0 is a watch model based on the 1N01 movement.
Parts List
| 180A62JB0C | crystal - crystal |
| 180A62JB0B | crystal - crystal |
| 180A62JB0D | crystal - crystal |
| 6K35Z0SNWE | crown - crown (3h) |
| 0F160BAAS | case back gasket - case back gasket |
| F264LZ | band - band |
| F265JZ | band - band |
| F263JZ | band - band |
| 1N010ER001C | others - case |
| 0351807 | others - winding stem |
| AC004BAD1 | others - crown and stem gasket |
| 81190075 | others - bracelet fixing pipe |
| 81610279 | others - bracelet fixing pin |
| 1N010JV4XA15 | others - dial |
| 1N010JW4XS15 | others - dial |
| 1N010JX4XZ15 | others - dial |
| 1N019 | others - machine code |
| 1N010ER003C | others - case |
| 1N010ER002C | others - case |
Caliber 1N01
