The Seiko 5Y31-5080 is a watch model based on the 5Y31 movement.
Parts List
| BA2W38JM01 | crystal |
| 35MA8NA1 | crown |
| 0A2800N | case back gasket |
| 0A2800N01 | case back gasket - case back gasket |
| NL | band |
| Z1439G | band |
| Z1439G-BK5G | clasp - clasp |
| 0351670 | others - winding stem |
| 5Y315080 | others - case back |
| 5Y31508075 | others - case |
| 5Y315320XB14 | others - dial |
| 5Y315320XG14 | others - dial |
| 5Y319 | others - machine code |
| 82811440 | others - case ring |
| A180BS | others - push pin |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 09T38DAM | others - minute hand |
| 09T32DAH | others - hour hand |