The Seiko 5E31-7A40 is a watch model based on the 5E31 movement.
Parts List
| 285W36SK01 | crystal |
| 6M35A2SNGA | crown - crown |
| 6M35A2SNWA | crown - crown |
| 0F270NA1S | case back gasket - case back gasket |
| DB33AB | band - band |
| DB32BB | band - band |
| 12ST12TD | others - second hand |
| 1BF080L0BDG | others - hour hand |
| 2BF115L0BDG | others - minute hand |
| 1BB080A1BAF | others - hour hand |
| 2BB120A1BAF | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351624 | others - winding stem |
| 5E317A4071 | others - case |
| 82833160 | others - case ring |
| 5E317A40 | others - case back |
| 5E317A4075 | others - case |
| 5E317A4075B | others - case |
| 5E315 | others - machine code |
| 5E317A40XS14 | others - dial |
| 5E317A50XG14 | others - dial |
| 5E317A70XG19 | others - dial |
| 87020283 | others - back plate |
| A180BS | others - push pin |