The Seiko 5P31-5180 is a watch model based on the 5P31 movement.
Parts List
| ESCW33SN01 | crystal |
| 32M25NA1 | crown - crown |
| 32M25NS1 | crown |
| 0F230BAA3 | case back gasket - case back gasket |
| AL03B | band - leather band |
| AL06B | band - leather band |
| AL02B | band - band |
| 09T09DCM | others - minute hand |
| 1BA065A1BNG | others - hour hand |
| 2BA095A1BDG | others - minute hand |
| 2BA095A1BNG | others - minute hand |
| 3BA125F1BNS | others - second hand |
| 3BA125F1BNG | others - second hand |
| 09T09DCH | others - hour hand |
| EB0055B01 | others - crown and stem gasket |
| 0351671 | others - winding stem |
| 5P31518075 | others - case |
| 82813950 | others - case ring |
| 5P315180 | others - case back |
| 5P3151807E | others - case |
| 5P315260XS14 | others - dial |
| 5P315270XG14 | others - dial |
| 5P315270XS13 | others - dial |
| 5P3161 | others - machine code |
| A180BS | others - push pin |
| 10SC27NG | others - second hand |
| 09T09DAH | others - hour hand |
| 09T09DAM | others - minute hand |
| 09T45AGH | others - hour hand |
| 09T45AGM | others - minute hand |
| 10SC27NS | others - second hand |
| 1BA065A1BNS | others - hour hand |
| 1BC065A1BAA | others - hour hand |
| 2BA095A1BDS | others - minute hand |
| 2BC095A1BAA | others - minute hand |