The Seiko 5P31-7A40 is a watch model based on the 5P31 movement.
Parts List
| 35M82NA1 | crown - crown |
| 0A2600N01 | case back gasket - case back gasket |
| LK22D | band - leather band |
| 11TD0FGH | others - hour hand |
| 0351670 | others - winding stem |
| 82802420 | others - case ring |
| 5P317A30XS19 | others - dial |
| 5P317A40 | others - case back |
| 5P317A4075 | others - case |
| 5P319 | others - machine code |
| A180BS | others - push pin |
| 13SC04A2 | others - second hand |
| 11TD0FGM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |