The Seiko 3F31-0A70 is a watch model based on the 3F31 movement.
Parts List
| 185A02SN01 | crystal - crystal (sapphire) |
| 30MK8NA4 | crown - crown |
| 0F170NA1S | case back gasket - case back gasket |
| DA47CW | band - band |
| DA36CW | band - band |
| MK08G | band - band |
| DA36CW-BJ00 | clasp - buckle |
| DA47CW-BJ00 | clasp - buckle |
| 1AA050A1BAF | others - hour hand |
| 1AC050A0BAA | others - hour hand |
| 2AA075A1BAF | others - minute hand |
| 3F310A70XA19 | others - dial |
| 3F310C60XA19 | others - dial |
| 3F310C90X914 | others - dial |
| 3F311 | others - machine code |
| A120AS | others - push pin |
| 0354735 | others - winding stem |
| 82833100 | others - case ring |
| 3F310A70TZ | others - case |
| 3F310A70 | others - case back |
| 3F310A70TZA | others - case |
| 07SC06DG | others - second hand |
| EZ0035B01 | others - crown and stem gasket |
| 2AC075AMBCA | others - minute hand |