The Seiko Y131-6430 is a watch model based on the Y131 movement.
Parts List
| 265N54LM01 | crystal - crystal (inorganic) |
| 265N54LM02 | crystal - crystal (inorganic) |
| 35MP8NC1 | crown |
| 0H2395B01 | case back gasket |
| 033LE | band - leather band |
| 035LE | band - leather band |
| A160BS | others - push pin |
| 0354786 | others - winding stem |
| 12SC50XK | others - second hand |
| EZ0058B01 | others - crown and stem gasket |
| 10CP6NBM | others - minute hand |
| 10CP6NBH | others - hour hand |