The Seiko 5Y39-6A50 is a watch model based on the 5Y39 movement.
Parts List
| 270WC1HK | crystal |
| 270WC1HK01 | crystal |
| 38E01NA2 | crown - crown |
| 38E01NS2 | crown |
| 0F260BAA1 | case back gasket - case back gasket |
| 0F260BAA | case back gasket |
| 86564990 | crystal gasket |
| G1400S | band |
| WJJ32G | band |
| WJZ25G | band |
| 12T29AAM | others - minute hand |
| 12T29NGH | others - hour hand |
| 0351105 | others - winding stem |
| EB0055B0A | others - crown and stem gasket |