The Seiko 5E31-6E90 is a watch model based on the 5E31 movement.
Parts List
| 240W58SZ0C | crystal - crystal |
| 6K35A0STGB | crown - crown |
| 0F240NAAS | case back gasket - case back gasket |
| 86582680 | crystal gasket - plastic gasket for crystal |
| D0C6AM | band - band |
| 3AA125FMANG | others - second hand |
| 1BH070A0BNG | others - hour hand |
| 2BH095A0BDG | others - minute hand |
| 0351624 | others - winding stem |
| 82831160 | others - case ring |
| 5E316E9061 | others - case |
| 5E316E90 | others - case back |
| 5E315 | others - machine code |
| 5E316F80XL14 | others - dial |
| 87020283 | others - back plate |
| A150BS | others - push pin |
| EA0040B0A | others - crown and stem gasket |