The Seiko 4N00-0781 is a watch model based on the 4N00 movement.
Parts List
| 150A02JN02 | crystal - crystal (inorganic) |
| 6M30Z3NNGB | crown |
| 6M30Z3NN | crown |
| 0F140BAA | case back gasket |
| 0F140BAA3 | case back gasket - case back gasket |
| B5721L | band |
| 2CE060L0BDG | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 1CE060L0BDG | others - hour hand |
| 1CE040L0BDG | others - hour hand |