The Seiko 4N00-0661 is a watch model based on the 4N00 movement.
Parts List
| 155A02JN02 | crystal - crystal (inorganic) |
| 30MD5NN1 | crown - crown |
| 30MD5NS1 | crown - crown |
| 0H1600B01 | case back gasket - case back gasket |
| 0H1600B0 | case back gasket |
| 4328KB | band - band |
| 4328YB | band - metal band |
| 4328JB | band - band |
| 1CA042A1BNG | others - hour hand |
| 2CA062A1BNG | others - minute hand |
| 1CA042A1BNS | others - hour hand |
| 06Y13DGM | others - minute hand |
| 1CE042LABDG | others - hour hand |
| 1CH042A1BNG | others - hour hand |
| 2CH062A1BNG | others - minute hand |
| 2CA062A1BNS | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 1CC045A1BNG | others - hour hand |
| 0351155 | others - winding stem |
| 4N0006612E | others - case |
| 4N002311XG14 | others - dial |
| 4N002311XG24 | others - dial |
| 4N002311XS13 | others - dial |
| 4N002321XS19 | others - dial |
| 4N002341XB14 | others - dial |
| 4N0061 | others - machine code |
| B090AS | others - push pin |
| 4N00066125 | others - case |
| 82860570 | others - case ring |
| 4N000661 | others - case back |
| 2CC065A1BNG | others - minute hand |