The Seiko 3F31-5010 is a watch model based on the 3F31 movement.
Parts List
| ES2A35S20A | crystal - crystal |
| 25M25DA5 | crown - crown (3h) |
| 0F170BAA3 | case back gasket - case back gasket |
| DA47CB | band - band |
| 1AB047A1BNG | others - hour hand |
| 2AB070A1BNG | others - minute hand |
| A120BS | others - push pin (for lb) |
| 3F310040XS14 | others - dial |
| 3F311 | others - machine code |
| 0354735 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 3F3150107HA | others - case |
| 82861130 | others - case ring |
| 3F315010 | others - case back |
| 3DA070AABDG | others - second hand |