The Seiko 5E31-5B30 is a watch model based on the 5E31 movement.
Parts List
| ESDW48SV01 | crystal - crystal |
| 25M20NA3 | crown |
| 0A2600N01 | case back gasket - case back gasket |
| DA29BW | band - band |
| AK46D | band - band |
| 10ST04DG | others - second hand |
| 5E315 | others - machine code |
| 5E315B70XG14 | others - dial |
| 5E315B71XG14 | others - dial |
| 87020283 | others - back plate |
| A170BS | others - push pin |
| 5E315B3075 | others - case |
| 82831480 | others - case ring |
| 5E315B30 | others - case back |
| 5E315B3075A | others - case |
| 0351624 | others - winding stem |
| 1BB065L0BCA | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
| 2BB100L0BCA | others - minute hand |