The Seiko 7431-7000 is a watch model based on the 7431 movement.
Parts List
| 280A02JN02 | crystal - crystal (inorganic) |
| 280N41JN00 | crystal - crystal |
| 30N49NA1 | crown - crown |
| 30N49NS1 | crown - crown |
| 0G2750B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| AK24B | band - band |
| AK25B | band - band |
| NK50A | band - band |
| 12P77CZM | others - minute hand |
| 2AC115A1BCC | others - minute hand |
| 3AA125F1A6S | others - second hand |
| 3AA125F1ANG | others - second hand |
| 12P01NGH | others - hour hand |
| 12P01NGM | others - minute hand |
| 11P61ASH | others - hour hand |
| 3AA125F3A6S | others - second hand |
| 3AA125F3ANG | others - second hand |
| 0354077 | others - winding stem |
| 743170002E | others - case |
| 743110 | others - machine code |
| 74317000XG24 | others - dial |
| 74317060XS19 | others - dial |
| A180BS | others - push pin |
| 7431700025 | others - case |
| 82701730 | others - case ring |
| 11SC17T1 | others - second hand |
| 11SC17T2 | others - second hand |
Caliber 7431
