The Seiko 7N42-F020 is a watch model based on the 7N42 movement.
Parts List
| 260PF2HN01 | crystal |
| 45MB8NA1 | crown - crown |
| 0F300NA11 | case back gasket |
| 0G285BA1F | case back gasket |
| 8656F151 | crystal gasket |
| B1823J-LKS | band - link |
| B1823J | band |
| B1823J-PB1 | clasp - parts for buckle/clasp |
| B1823J-BK2G | clasp - clasp |
| 0351892 | others - winding stem |
| 81181879 | others - bracelet fixing pipe |
| 81610729 | others - bracelet fixing pin |
| 0878580 | others - date dial |
| 7N426A7PXS14 | others - dial |
| 7N42F020 | others - case back |
| 7N42F0206YA | others - case |
| 8133F019 | others - click pin |
| 8270F180 | others - case ring |
| 84322902 | others - dial ring |
| 8601F025 | others - bezel |
| 0Z0060B01 | others - crown and stem gasket |
| 2AH110F0BBA | others - minute hand |
| 1AH075F0BBA | others - hour hand |
| 12SC35VG | others - second hand |