The Seiko 5Y31-6050 is a watch model based on the 5Y31 movement.
Parts List
| 265W20JN01 | crystal - crystal |
| 265W20JN | crystal |
| 35MA8NS1 | crown |
| 0A2400B01 | case back gasket |
| Z1487S | band |
| 0351670 | others - winding stem |
| 82801940 | others - case ring |
| 5Y31605079 | others - case |
| 5Y316080XS13 | others - dial |
| 5Y319 | others - machine code |
| A140BS | others - push pin |
| 13SC04ES | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 11T08ASM | others - minute hand |
| 11T08ASH | others - hour hand |