The Seiko 5Y39-5A20 is a watch model based on the 5Y39 movement.
Parts List
| ET5N19JN01 | crystal |
| ET5N19JN | crystal |
| 30N97NN1 | crown |
| 30N73NN1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| DZ0065B0 | case back gasket |
| 0H2600B01 | case back gasket - case back gasket |
| 0H2600B0 | case back gasket |
| ZPZ24G | band - leather band |
| 5Y395A10XN14 | others - dial |
| 5Y395A20 | others - case back |
| 5Y395A2025 | others - case |
| 82820790 | others - case ring |
| A180BS | others - push pin |
| 2BC100A1BNG | others - minute hand |
| 10T19NGM | others - minute hand |
| 1BC070A1BNG | others - hour hand |