The Seiko 5P31-9A00 is a watch model based on the 5P31 movement.
Parts List
| 310W74JN01 | crystal - crystal |
| 35MA8NS1 | crown |
| 35MA8NA1 | crown |
| 0A3100N01 | case back gasket |
| AC08A | band - band |
| AC07A | band - band |
| AC07A-ETW0 | band - other band parts |
| 13T08NBH | others - hour hand |
| 82811000 | others - case ring |
| 5P312 | others - machine code |
| 5P319A00 | others - case back |
| 5P319A0076 | others - case |
| 5P319A007E | others - case |
| 5P319A00XS19 | others - dial |
| 5P319A00XS29 | others - dial |
| 87020420 | others - back plate |
| 0351672 | others - winding stem |
| 81350861 | others - button spring |
| 13T06NBM | others - minute hand |
| 13SC04AB | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |