The Seiko 7N42-0DW0 is a watch model based on the 7N42 movement.
Parts List
| 300P03HN02 | crystal - crystal (inorganic) |
| 8K45D6SNS0 | crown - crown |
| 8K45D6SNG1 | crown - crown |
| FE318BAD2 | case back gasket - case back gasket |
| 86178611 | crystal gasket - plastic gasket for crystal |
| 86178610 | crystal gasket - plastic gasket for crystal |
| 86178990 | bezel gasket - plastic gasket for bezel |
| 4A051JX | band - metal band |
| 4A051JX-LK | band - link |
| 4A051KM | band - metal band |
| 4A051KM-LK | band - link |
| 4A051KX | band - metal band |
| 4A051KX-LK | band - link |
| 4A051LX | band - metal band |
| 4A051LX-LK | band - link |
| 4A051LX-PB | clasp - parts for buckle/clasp |
| H01R11SA03B | clasp - clasp |
| 4A051LX-BK | clasp - clasp |
| 4A051KX-PB | clasp - parts for buckle/clasp |
| 4A051KX-BK | clasp - clasp |
| 4A051KM-PB | clasp - parts for buckle/clasp |
| 4A051KM-BK | clasp - clasp |
| 4A051JX-PB | clasp - parts for buckle/clasp |
| 4A051JX-BK | clasp - clasp |
| 3AA125F0ANG | others - second hand |
| 3AA125F0ANS | others - second hand |
| 1AF075ABBEG | others - hour hand |
| 1AF075ABBES | others - hour hand |
| 2BF115A2BES | others - minute hand |
| 2BF115A2BEG | others - minute hand |
| 81606619 | others - bracelet fixing pin |
| 82736540 | others - case ring |
| 81190075 | others - bracelet fixing pipe |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 0878580 | others - date dial |
| 7N420DW0 | others - case back |
| 7N420DW001B | others - case |
| 7N420DW002B | others - case |
| 7N420DW003B | others - case |
| 7N420GG8XL14 | others - dial |
| 7N420GG8XS13 | others - dial |
| 7N420GG8XS24 | others - dial |
| 7N423 | others - machine code |
| 87332661 | others - bezel |
| 87332664 | others - bezel |
| 87332681 | others - bezel |