The Seiko 5P31-6A2A is a watch model based on the 5P31 movement.
Parts List
| 270W20HM02 | crystal |
| 35M82NA1 | crown - crown |
| 0A2400N01 | case back gasket - case back gasket |
| 86580140 | crystal gasket |
| AA58B | band - metal band |
| 82801940 | others - case ring |
| 5P316A2A | others - case back |
| 5P316A2A61 | others - case |
| 5P316A40XG14 | others - dial |
| 5P319 | others - machine code |
| A150BS | others - push pin |
| 0351670 | others - winding stem |
| 11T08NGH | others - hour hand |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 11T10NGM | others - minute hand |