The Seiko 5Y39-5B40 is a watch model based on the 5Y39 movement.
Parts List
| RE0A05JN02 | crystal |
| RE0A05JN | crystal |
| 32M31NN1 | crown |
| 0H2600B01 | case back gasket - case back gasket |
| 0H2600B0 | case back gasket |
| B1746G | band |
| B1746G-BK3G | clasp - clasp |
| 1BA060A1BNG | others - hour hand |
| A120BS | others - push pin (for lb) |
| 0801730 | others - date dial |
| 0801732 | others - date dial |
| 5Y395B40 | others - case back |
| 5Y395B4025 | others - case |
| 5Y395C20XG14 | others - dial |
| 5Y395C20XS14 | others - dial |
| 5Y396B | others - machine code |
| 82842810 | others - case ring |
| 0351670 | others - winding stem |
| EB0055B01 | others - crown and stem gasket |
| 09T13NGH | others - hour hand |
| 09T13NGM | others - minute hand |
| 2BA090A1BNG | others - minute hand |