The Seiko 7731-5170 is a watch model based on the 7731 movement.
Parts List
| ESWN31SN00 | crystal |
| 30N59DA5 | crown - crown |
| 0F240NA11 | case back gasket |
| LK67B | band - band |
| 773151704FA | others - case |
| 77315200XG14 | others - dial |
| 773162 | others - machine code |
| 82719470 | others - case ring |
| A180BS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 0354371 | others - winding stem |
| 11P63DHM | others - minute hand |
| 11P63NHH | others - hour hand |
| 1AB070A1BNG | others - hour hand |
| 11SC33VG | others - second hand |