The Seiko 5P31-6A7A is a watch model based on the 5P31 movement.
Parts List
| 275W20HN01 | crystal - crystal |
| 35MA8NA1 | crown |
| 0A2600N01 | case back gasket - case back gasket |
| 86574200 | crystal gasket |
| AK28C | band - band |
| LK49C | band - band |
| LK50C | band - leather band |
| 82802420 | others - case ring |
| 5P316A7A75 | others - case |
| 5P316A7A | others - case back |
| 5P316B50XB12 | others - dial |
| 5P316B60XS19 | others - dial |
| 5P316C70XS19 | others - dial |
| 5P319 | others - machine code |
| A170BS | others - push pin |
| 0351670 | others - winding stem |
| 13SC04A2 | others - second hand |
| 12T40AGM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 11TA8AGH | others - hour hand |
| 11TA8AGM | others - minute hand |
| 12T40NGM | others - minute hand |
| 12T40AGH | others - hour hand |
| 12T40NGH | others - hour hand |