The Seiko 5E31-6D30 is a watch model based on the 5E31 movement.
Parts List
| 270WA6SK01 | crystal |
| 30MK8NJ4 | crown - crown |
| 0F250NA1S | case back gasket |
| DA29AB | band - band |
| 1BB075L0BCJ | others - hour hand |
| 2BB115L2BCE | others - minute hand |
| 82812540 | others - case ring |
| 12ST06DC | others - second hand |
| 0351624 | others - winding stem |
| 5E316D3071 | others - case |
| 5E316D30 | others - case back |
| 5E315 | others - machine code |
| 5E316D70XS13 | others - dial |
| 87020283 | others - back plate |
| A170BS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |