The Seiko 3F31-5000 is a watch model based on the 3F31 movement.
Parts List
| ES2A21SN02 | crystal - crystal |
| 25M25DA5 | crown - crown (3h) |
| 0F170BAA3 | case back gasket - case back gasket |
| DA47BW | band - band |
| DA47BW-BJ00 | clasp - buckle |
| 1AG045LABDG | others - hour hand |
| 2AG070LABDG | others - minute hand |
| 3DA065AABDG | others - second hand |
| DZ0040B01 | others - crown and stem gasket |
| 0354735 | others - winding stem |
| 3F31500075A | others - case |
| 82860530 | others - case ring |
| 3F315000 | others - case back |
| 3F310030XG14 | others - dial |
| 3F311 | others - machine code |
| A120AS | others - push pin |