The Seiko 7431-612A is a watch model based on the 7431 movement.
Parts List
270P03HN03 | crystal - crystal |
FH2780B0A | case back gasket - case back gasket |
AA27B | band - band |
743110 | others - machine code |
7431612AWZ | others - case |
7431613LXE19 | others - dial |
A160BS | others - push pin |
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)