The Seiko 6531-6020 is a watch model based on the 6531 movement.
Parts List
| 275W20HN01 | crystal - crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 0A2400N01 | case back gasket - case back gasket |
| 86574200 | crystal gasket |
| AK47B | band - band |
| AK49B | band - band |
| 0354765 | others - winding stem |
| 6531602061 | others - case |
| 82800540 | others - case ring |
| 6531602075 | others - case |
| 65316020X999 | others - dial |
| 65316020XG19 | others - dial |
| 65319 | others - machine code |
| A180BS | others - push pin |
| 13SC04A2 | others - second hand |
| 10T38NAM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 10T38NAH | others - hour hand |