The Seiko 5Y31-6030 is a watch model based on the 5Y31 movement.
Parts List
| 280WC4JM01 | crystal |
| 280WC4JM | crystal |
| 35MA8NA1 | crown |
| 0A2500N01 | case back gasket - rotating bezel gasket |
| BNA52E | band |
| BNJ66G | band |
| BNA52G | band |
| 0351670 | others - winding stem |
| 82803260 | others - case ring |
| 5Y316030 | others - case back |
| 5Y31603075 | others - case |
| 5Y316030WG | others - case |
| 5Y316100XB14 | others - dial |
| 5Y316100XG14 | others - dial |
| 5Y316130XB14 | others - dial |
| 5Y316130XG14 | others - dial |
| 5Y319 | others - machine code |
| A170BS | others - push pin |
| 10T04NGH | others - hour hand |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 09T38DAM | others - minute hand |
| 09T40DAH | others - hour hand |
| 10T04NGM | others - minute hand |