The Seiko 5P31-5090 is a watch model based on the 5P31 movement.
Parts List
| ESBW35HN01 | crystal |
| 35M77NA1 | crown |
| 0F220BAA3 | case back gasket - case back gasket |
| 86582530 | crystal gasket |
| GK16B | band - leather band |
| GK18B | band - leather band |
| 3BA125F1BNG | others - second hand |
| 09SC27NG | others - second hand |
| EB0055B01 | others - crown and stem gasket |
| 0351671 | others - winding stem |
| 5P31509075 | others - case |
| 5P315150XS19 | others - dial |
| 5P315200XS19 | others - dial |
| 82811610 | others - case ring |
| A160BS | others - push pin |
| 09T43AGH | others - hour hand |
| 09T43AGM | others - minute hand |
| 1BC060A1BAA | others - hour hand |