The Seiko 6431-5040 is a watch model based on the 6431 movement.
Parts List
| SA3W06GN00 | crystal - crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 35M82N | crown |
| 0Z2702N0A | case back gasket - case back gasket |
| 86560740 | crystal gasket - plastic gasket for crystal |
| 86560741 | crystal gasket - plastic gasket for crystal |
| AL11A | band - band |
| AL10A | band - band |
| AL12A | band - band |
| 11T08CSM | others - minute hand |
| 0354641 | others - winding stem |
| 6431504061 | others - case |
| 82700920 | others - case ring |
| 6431504075A | others - case |
| 6431504075 | others - case |
| 64315080XB14 | others - dial |
| 64315080XG14 | others - dial |
| 64315090XS19 | others - dial |
| A180BS | others - push pin |
| 11T08DGM | others - minute hand |
| 13SC04A2 | others - second hand |
| 13SC04ES | others - second hand |
| 11T08N1H | others - hour hand |
| 0Z0060B01 | others - crown and stem gasket |
| 11T08ASH | others - hour hand |
Caliber 6431
