The Seiko 7731-5190 is a watch model based on the 7731 movement.
Parts List
| 30M15D05 | crown - crown |
| 0F220NA11 | case back gasket - case back gasket |
| YB06A | band - band |
| 81604259 | others - bracelet fixing pin |
| 81180249 | others - bracelet fixing pipe |
| 81601449 | others - bracelet fixing pin |
| 77315190HMA | others - case |
| 77315220XN13 | others - dial |
| 773162 | others - machine code |
| 0354371 | others - winding stem |