The Seiko 5Y39-7A50 is a watch model based on the 5Y39 movement.
Parts List
| 280WB1JM01 | crystal |
| 280WB1JM | crystal |
| 32M01NN1 | crown |
| 0F230BAA | case back gasket |
| 0F230BAA3 | case back gasket - case back gasket |
| B1656C | band |
| EB0055B01 | others - crown and stem gasket |
| 0351670 | others - winding stem |
| 12T23DGM | others - minute hand |
| 12T23DGH | others - hour hand |