The Seiko 7431-6170 is a watch model based on the 7431 movement.
Parts List
| 270W27HN00 | crystal |
| 270P05HN03 | crystal |
| 30M17NA1 | crown |
| 0F220BAA5 | case back gasket - case back gasket |
| 86573010 | crystal gasket |
| JK32A | band - leather band |
| 3BA125F1BNG | others - second hand |
| EB0055B01 | others - crown and stem gasket |
| 12P01CLH | others - hour hand |
| 0354077 | others - winding stem |
| 743110 | others - machine code |
| 743161707C | others - case |
| 74316220XG18 | others - dial |
| 82732030 | others - case ring |
| A180BS | others - push pin |
| 12P01CLM | others - minute hand |
| 12SC03NG | others - second hand |
Caliber 7431
