The Seiko 7N42-0EW0 is a watch model based on the 7N42 movement.
Parts List
| 290A04JN02 | crystal - crystal (inorganic) |
| 8K40B3SNS0 | crown - crown |
| 8K40B3SNG3 | crown - crown (3h) |
| 0F260BAD2 | case back gasket - case back gasket |
| M03H111C0 | band - metal band |
| M03H111C9 | band - metal band |
| M03H111J0 | band - metal band |
| M03H111J9 | band - metal band |
| M03H111K0 | band - metal band |
| M03H1CLK | band - link |
| M03H1JLK | band - link |
| M03H1KLK | band - link |
| H01R11SA13Z | clasp - clasp |
| H01R11SA14Z | clasp - clasp |
| H01R11SE11C | clasp - clasp |
| 1AA080A0BN9 | hand - hour hand |
| 1AA080A0BNG | hand - hour hand |
| 1BE085L0BD9 | hand - hour hand |
| 2AA115A2BN9 | hand - minute hand |
| 2AA115A2BNG | hand - minute hand |
| 2BE125L0BD9 | hand - minute hand |
| 3AA125F3ANG | others - second hand |
| 3AA125F3ANS | others - second hand |
| 2BE125L0BDG | others - minute hand |
| 1BE085L0BDG | others - hour hand |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 82738200 | others - case ring |
| 81181879 | others - bracelet fixing pipe |
| 81604569 | others - bracelet fixing pin |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| Z170ZS | others - push pin (clasp and band) |
| 7N420EW0 | others - case back |
| 7N420EW001A | others - case |
| 7N420EW001B | others - case |
| 7N420EW002A | others - case |
| 7N420EW002B | others - case |
| 7N420EW003A | others - case |
| 7N420EW003B | others - case |
| 7N420HS0XS13 | others - dial |
| 7N420HS0XS24 | others - dial |
| 7N420HS8XS13 | others - dial |
| 7N420HS8XS24 | others - dial |
| 7N420HT8XB14 | others - dial |
| 7N420HT8XL13 | others - dial |
| 7N423 | others - machine code |