The Seiko 7431-6100 is a watch model based on the 7431 movement.
Parts List
| 260N25JN00 | crystal - crystal |
| 260A02JN02 | crystal - crystal |
| 35NN3NS1 | crown - crown |
| 0G2500B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| GL24A | band - band |
| GL49A | band - band |
| LK48D | band - band |
| LK49D | band - band |
| 3AA125F1A6S | others - second hand |
| 11SC43T2 | others - second hand |
| 3AA125F1ANB | others - second hand |
| 11P11NBH | others - hour hand |
| 11P11NBM | others - minute hand |
| 11SC17TB | others - second hand |
| 11PA3NBH | others - hour hand |
| 11PA3NBM | others - minute hand |
| 11PB1NBH | others - hour hand |
| 11PB1NBM | others - minute hand |
| 0354077 | others - winding stem |
| 74316100HE | others - case |
| 82712970 | others - case ring |
| 743110 | others - machine code |
| 74316110XS19 | others - dial |
| 74316111XS19 | others - dial |
| 74316270XS19 | others - dial |
| 74316280XG19 | others - dial |
| A180BS | others - push pin |
Caliber 7431
