The Seiko 5P31-6180 is a watch model based on the 5P31 movement.
Parts List
| 265W27SN01 | crystal |
| 35MJ5NA1 | crown |
| 0F220BAA3 | case back gasket - case back gasket |
| GL53A | band - leather band |
| 3AA125F1ANG | others - second hand |
| 3AA125F3ANG | others - second hand |
| 11T09AGH | others - hour hand |
| 11T09AGM | others - minute hand |
| 1BD080AABAA | others - hour hand |
| 2BD110ACBAA | others - minute hand |
| 0351671 | others - winding stem |
| EB0055B01 | others - crown and stem gasket |
| 82733090 | others - case ring |
| 5P3161 | others - machine code |
| 5P316180 | others - case back |
| 5P31618075 | others - case |
| 5P316230XS14 | others - dial |
| 5P316240XS14 | others - dial |
| A180BS | others - push pin |
| 11SC17T1 | others - second hand |