The Seiko 4N00-0901 is a watch model based on the 4N00 movement.
Parts List
| 180A02JN02 | crystal - crystal |
| 170A02JN02 | crystal - crystal |
| 6M30B5NNG0 | crown - crown |
| 6M30B5NN | crown |
| 0H1600B01 | case back gasket - case back gasket |
| 0H1600B0 | case back gasket |
| 2CE070L0BDG | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 1CE047L0BNG | others - hour hand |