The Seiko 5Y30-7A79 is a watch model based on the 5Y30 movement.
Parts List
| 280WB1JN01 | crystal |
| 280A03JN02 | crystal - crystal (inorganic) |
| 280WB1JN | crystal |
| 280A03JN | crystal |
| 30ME9NN1 | crown |
| 0F230BAA | case back gasket |
| 0F230BAA3 | case back gasket - case back gasket |
| WPA45K | band |
| 0D005BA13 | others - crown and stem gasket |
| 0351671 | others - winding stem |
| 11T03DHM | others - minute hand |
| 11T03DHH | others - hour hand |