The Seiko 1N01-0G20 is a watch model based on the 1N01 movement.
Parts List
| 150A50JR02 | crystal - crystal |
| 150A50JR | crystal |
| 30MA2NA1 | crown - crown |
| 0F150NA1S | case back gasket - case back gasket |
| 0F150NA1 | case back gasket |
| 4398LB | band - band |
| 4398KB | band - band |
| 4398KB-LKG | band - link |
| 4398LB-LKG | band - link |
| 4398LB-BK4G | clasp - buckle |
| 4398KB-BK4G | clasp - buckle |
| 2BB060A2BNG | others - minute hand |
| 2BF055AMBAA | others - minute hand |
| 1BB037A0BNG | others - hour hand |
| 1BF037AMBAA | others - hour hand |
| 81190055 | others - bracelet fixing pipe |
| 81603979 | others - bracelet fixing pin |
| 82821520 | others - case ring |
| 1N010G2075Z | others - case |
| 1N010G20 | others - case back |
| 1N010G207HZ | others - case |
| 0351807 | others - winding stem |
| 1N011C08XB14 | others - dial |
| 1N011C08XG14 | others - dial |
| 1N011C08XS14 | others - dial |
| 1N011C18XZ14 | others - dial |
| 1N011C18XZ24 | others - dial |
| 1N019 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 3BA100F1BNG | others - second hand |
Caliber 1N01
