The Seiko 7731-5130 is a watch model based on the 7731 movement.
Parts List
| ES7W99KN | crystal |
| ES7W99KN00 | crystal - crystal |
| 35E15NA1 | crown |
| 0H235BAA1 | case back gasket - case back gasket |
| 86568330 | crystal gasket - plastic gasket for crystal |
| GA07B | band - band |
| 11P63CGH | others - hour hand |
| 11P63CGM | others - minute hand |
| 3AA125F1ANG | others - second hand |
| 773151306Y | others - case |
| 7731513098 | others - case |
| 77315150XG18 | others - dial |
| 77315150XS18 | others - dial |
| 773162 | others - machine code |
| A180BS | others - push pin |
| 82712210 | others - case ring |
| EB0055B0A | others - crown and stem gasket |
| 0354371 | others - winding stem |
| 11SC17T1 | others - second hand |