The Seiko 7N42-0DE0 is a watch model based on the 7N42 movement.
Parts List
| 290P42HN02 | crystal - crystal (inorganic) |
| 8K45D2SNG2 | crown - crown (3h) |
| 8K45D2SNW1 | crown - crown |
| FE308BAD2 | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 35B1JG | band - band |
| 35B1JG-LK | band - link |
| 35B1JG-BK | clasp - buckle |
| 35B1JG-PB | clasp - parts for buckle |
| 1AB075LPBE2 | others - hour hand |
| 2BB115LCBEG | others - minute hand |
| 1AB075LPBE1 | others - hour hand |
| 2BB115LCBES | others - minute hand |
| 3AX130F0AES | others - second hand |
| 3AX130F0AEG | others - second hand |
| 7N420DE002A | others - case |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 0878589 | others - date dial |
| 7N420DE003B | others - case |
| 7N420FG8XL13 | others - dial |
| 7N420FG8XS13 | others - dial |
| 7N420FG8XY13 | others - dial |
| 7N420FH0XL14 | others - dial |
| 7N420FH8XB13 | others - dial |
| 7N420FH8XL14 | others - dial |
| 7N423 | others - machine code |
| 81190075 | others - bracelet fixing pipe |
| 81606619 | others - bracelet fixing pin |
| 82737920 | others - case ring |
| AD006BAD1 | others - crown and stem gasket |
| 7N420DE0 | others - case back |
| 7N420DE002B | others - case |
| 7N420DE001B | others - case |
| 0351892 | others - winding stem |