The Seiko 5P31-6C80 is a watch model based on the 5P31 movement.
Parts List
| 275W04SN01 | crystal |
| 35M78NS1 | crown - crown |
| 0A2600B0A | case back gasket |
| 86564620 | crystal gasket - plastic gasket for crystal |
| AL24B | band - leather band |
| 82803220 | others - case ring |
| 5P316C80 | others - case back |
| 5P316C8061 | others - case |
| 5P316E50XS13 | others - dial |
| 5P319 | others - machine code |
| A150BS | others - push pin |
| 0351670 | others - winding stem |
| 12TC0DBH | others - hour hand |
| 12TC0DBM | others - minute hand |
| 13SC04AB | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |