The Seiko 5E31-6C90 is a watch model based on the 5E31 movement.
Parts List
| 265W24SN01 | crystal |
| 30MK8NA4 | crown - crown |
| 0A2700N01 | case back gasket - case back gasket |
| AB58B | band - metal band |
| 0351624 | others - winding stem |
| 12ST06DA | others - second hand |
| 81180229 | others - bracelet fixing pipe |
| 81607599 | others - bracelet fixing pin |
| 82833160 | others - case ring |
| 5E315 | others - machine code |
| 5E316C90 | others - case back |
| 5E316C90SA | others - case |
| 5E316D20XA19 | others - dial |
| 87020283 | others - back plate |
| 1BF075LMBDG | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
| 2BF110L0BDG | others - minute hand |