The Seiko 5P31-5A9A is a watch model based on the 5P31 movement.
Parts List
| ES9W18JM02 | crystal |
| 35MA8NA1 | crown |
| 0A2500N01 | case back gasket - rotating bezel gasket |
| 86574800 | crystal gasket |
| JL02A | band - leather band |
| 5P315A9A6R | others - case |
| 5P315B10XB14 | others - dial |
| 5P319 | others - machine code |
| 82802260 | others - case ring |
| A170BS | others - push pin |
| 0351670 | others - winding stem |
| 10T42DGH | others - hour hand |
| 10T42DGM | others - minute hand |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |