The Seiko 5E31-5B00 is a watch model based on the 5E31 movement.
Parts List
| BA3W06SN01 | crystal |
| 30MG8NA4 | crown - crown |
| 0A2600N01 | case back gasket - case back gasket |
| YB28A | band - metal band |
| 10ST04DG | others - second hand |
| A100BS | others - push pin (for mb) |
| 5E311 | others - machine code |
| 5E315B00SB | others - case |
| 5E315B0A | others - case back |
| 5E315B20XS14 | others - dial |
| 87020283 | others - back plate |
| 82821280 | others - case ring |
| 0351624 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 10TA8DGM | others - minute hand |
| 10TA8NAH | others - hour hand |