The Seiko 3F81-0A20 is a watch model based on the 3F81 movement.
Parts List
| 200P06SZ01 | crystal - crystal (sapphire) |
| 6M35A0KAG1 | crown - crown |
| 0F190NA1S | case back gasket - case back gasket |
| 86582440 | crystal gasket - plastic gasket for crystal |
| MK24G | band - band |
| 08ST06JG | others - second hand |
| 1AG055F0BXC | others - hour hand |
| 2AG080F0BXC | others - minute hand |
| EZ0035B0D | others - crown and stem gasket |
| 0354735 | others - winding stem |
| 82833200 | others - case ring |
| 3F810A2093 | others - case |
| A120AS | others - push pin |
Other models with the same movement