The Seiko 5Y31-5340 is a watch model based on the 5Y31 movement.
Parts List
| ESBW46JM02 | crystal |
| ESBW46JM01 | crystal |
| ESBW46JM | crystal |
| 35M82NA1 | crown - crown |
| 0A2500B01 | case back gasket - case back gasket |
| WRA16E | band |
| WRJ21G | band |
| 0351670 | others - winding stem |
| 5Y315340 | others - case back |
| 5Y31534075 | others - case |
| 5Y315340WG | others - case |
| 5Y315680XB14 | others - dial |
| 5Y315680XG14 | others - dial |
| 5Y319 | others - machine code |
| 82802600 | others - case ring |
| A200BS | others - push pin |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 08T50DGM | others - minute hand |
| 08T50DGH | others - hour hand |