The Seiko 8N20-6040 is a watch model based on the 8N20 movement.
Parts List
| 260A02SN01 | crystal - crystal (sapphire) |
| 25M49DXA | crown - crown |
| 25M49DXB | crown - crown |
| 0F220NAA3 | bezel gasket |
| LK07F | band - leather band |
| DZ0040B01 | others - crown and stem gasket |
| 11T69JSH | others - hour hand |
| 0351388 | others - winding stem |
| 82843590 | others - case ring |
| 8N206040 | others - case back |
| 8N2060406EA | others - case |
| 8N206080XS13 | others - dial |
| 8N206090XL13 | others - dial |
| 8N2063 | others - machine code |
| A180AS | others - push pin |
| 11T69JSM | others - minute hand |
Caliber 8N20
Other models with the same movement
| 8N20-5000 |
| 8N20-5019 |
| 8N20-5020 |
| 8N20-6000 |
| 8N20-6001 |
| 8N20-6010 |
| 8N20-6020 |
| 8N20-6030 |
| 8N20-603A |
| 8N20-6070 |
| 8N20-6080 |
| 8N20-6099 |
| 8N20-6100 |
| 8N20-6110 |
| 8N20-6120 |
| 8N20-6130 |
| 8N20-6140 |
| 8N20-7000 |
| 8N20-700A |
| 8N20-8009 |