The Seiko 5Y39-5B31 is a watch model based on the 5Y39 movement.
Parts List
| BA0A05J20A | crystal |
| BA0A05J2 | crystal |
| 35M39NN1 | crown |
| 0F260BAA3 | case back gasket - case back gasket |
| 0F260BAA | case back gasket |
| B1748L | band |
| B1748L-LKG | band - link |
| B1748L-BK4G | clasp - clasp |
| 09T09DCM | others - minute hand |
| 1BA065A1BNG | others - hour hand |
| 2BA095A1BDG | others - minute hand |
| 09T09DCH | others - hour hand |
| 0351670 | others - winding stem |
| EB0055B01 | others - crown and stem gasket |
| 0801738 | others - date dial |
| 5Y395B31 | others - case back |
| 5Y395B3179 | others - case |
| 5Y395C01XS24 | others - dial |
| 5Y395C41XN14 | others - dial |
| 5Y396B | others - machine code |
| 82831830 | others - case ring |
| A180BS | others - push pin |
| 2BC090A1BNG | others - minute hand |
| 09T43NGM | others - minute hand |
| 09T43NGH | others - hour hand |
| 1BC060A1BNG | others - hour hand |