The Seiko 5P31-6B00 is a watch model based on the 5P31 movement.
Parts List
| 255W04SN01 | crystal - crystal |
| 40M78NA1 | crown - crown |
| 0A2600N0A | case back gasket |
| 86562221 | crystal gasket |
| AA67B | band - band |
| 10T90NGH | others - hour hand |
| 10T90NGM | others - minute hand |
| 10T90AAH | others - hour hand |
| 10T90AAM | others - minute hand |
| 0351670 | others - winding stem |
| 5P316B00SF | others - case |
| 82802780 | others - case ring |
| 5P316B00 | others - case back |
| 5P316C30XS19 | others - dial |
| 5P316C40XB14 | others - dial |
| 5P319 | others - machine code |
| B080BS | others - push pin |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |