The Seiko 7431-5230 is a watch model based on the 7431 movement.
Parts List
| SACN43HN00 | crystal |
| 30N39NA1 | crown |
| 0H2400B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| AK09B | band - leather band |
| 3AA125F1ANG | others - second hand |
| 0354077 | others - winding stem |
| 743110 | others - machine code |
| 7431523025 | others - case |
| 74315290XS18 | others - dial |
| 82711070 | others - case ring |
| A200BS | others - push pin |
| 10P67CHH | others - hour hand |
| 10P67CHM | others - minute hand |
| 10SC25T1 | others - second hand |
Caliber 7431
