The Seiko 7431-5450 is a watch model based on the 7431 movement.
Parts List
ESZN19JN01 | crystal - crystal |
40MS3NG1 | crown - crown |
0G2710B02 | case back gasket |
DZ0065B01 | case back gasket - button gasket |
YK21B | band - band |
3BA125F1BNG | others - second hand |
08P49AAH | others - hour hand |
08P49AAM | others - minute hand |
0354077 | others - winding stem |
7431545025 | others - case |
82731750 | others - case ring |
743110 | others - machine code |
74315610XS19 | others - dial |
A150BS | others - push pin |
08SC29NG | others - second hand |
Caliber 7431
![Caliber manual page](https://www.theseikoguy.com/media/movements/7/7431A_caliber_en_1.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/7/7431A_caliber_en_2.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/7/7431A_caliber_en_3.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/7/7431A_caliber_en_4.jpg)