The Seiko 4N00-6320 is a watch model based on the 4N00 movement.
Parts List
| ES3A19J20B | crystal - crystal |
| ES3A19J20A | crystal - crystal |
| ES3A19J2 | crystal |
| 6M30C3NNG0 | crown - crown |
| 6M30C3NN | crown |
| 0H1600B01 | case back gasket - case back gasket |
| 0H1600B0 | case back gasket |
| 4133CB | band - band |
| 4133BB | band - band |
| 4133BB-LKG | band - link |
| 4133CB-LKG | band - link |
| 4133CB-BK4G | clasp - buckle |
| 4133BB-BK4G | clasp - buckle |
| 1CC030A1BNG | others - hour hand |
| 2CC045A1BNG | others - minute hand |
| DA007BA11 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 4N00632025B | others - case |
| 4N0063202HA | others - case |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 81190875 | others - bracelet fixing pipe |
| 81610279 | others - bracelet fixing pin |
| 4N00632025A | others - case |
| 82863710 | others - case ring |
| 4N006320 | others - case back |
| 4N004060XB14 | others - dial |
| 4N004060XG14 | others - dial |
| 4N004060XS14 | others - dial |
| 4N0061 | others - machine code |