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
