The Seiko 5P31-6B70 is a watch model based on the 5P31 movement.
Parts List
| 275W10SN00 | crystal - crystal |
| 35MA8EH1 | crown - crown |
| 0A2600B01 | case back gasket |
| 86574200 | crystal gasket |
| LL29A | band - band |
| 12T12NCH | others - hour hand |
| 12T12NCM | others - minute hand |
| 82803260 | others - case ring |
| 0351670 | others - winding stem |
| 5P316B70RC | others - case |
| 5P316B70 | others - case back |
| 5P316D20X919 | others - dial |
| 5P319 | others - machine code |
| A170BS | others - push pin |
| 13SC04AB | others - second hand |