The Seiko 6431-6020 is a watch model based on the 6431 movement.
Parts List
| 260W10GN00 | crystal - crystal (inorganic) |
| 35M82NS1 | crown - crown |
| 0A2700N01 | case back gasket - case back gasket |
| 86565020 | crystal gasket - plastic gasket for crystal |
| AC01A | band - band |
| 10T34CSH | others - hour hand |
| 10T34CSM | others - minute hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 0354641 | others - winding stem |
| 82700620 | others - case ring |
| 643160206W | others - case |
| 64316020XS19 | others - dial |
| 89900729 | others - shell cover unit |
| 13SC04AB | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 6431
