The Seiko 7N42-0EM0 is a watch model based on the 7N42 movement.
Parts List
| 310P03HN02 | crystal - crystal (inorganic) |
| 8K55C6SNG3 | crown - crown (3h) |
| 8K55C6SNW1 | crown - crown (3h) |
| FE328BAD2 | case back gasket - case back gasket |
| 86565100 | crystal gasket - plastic gasket for crystal |
| 86179152 | crystal gasket - plastic gasket for crystal |
| 86585320 | bezel gasket - plastic gasket for bezel |
| 35Y0JB | band - metal band |
| 35Y0LBLK | band - link |
| 35Y0JBLK | band - link |
| 35Y0LB | band - metal band |
| H00W14SA03B | clasp - clasp |
| 1AX080FCBEG | hand - hour hand |
| 2BH120FDBEG | hand - minute hand |
| 2BH120FDBES | hand - minute hand |
| 3AX125F3AEG | others - second hand |
| 1AX080FCBES | others - hour hand |
| 3AX125F3AES | others - second hand |
| 0351892 | others - winding stem |
| 35Y0JBEP | others - endpiece |
| 0878580 | others - date dial |
| 82845500 | others - case ring |
| H19050S | others - hairpin (band) |
| S200BS | others - push pin |
| Z200TS | others - push pin (clasp and band) |
| 35Y0LBEP | others - endpiece |
| AD006BAD1 | others - crown and stem gasket |
| 7N420EM0 | others - case back |
| 7N420EM001B | others - case |
| 7N420EM002B | others - case |
| 7N420HD8XN13 | others - dial |
| 7N420HD8XS14 | others - dial |
| 7N423 | others - machine code |
| 84385606 | others - dial ring(set) |
| 84385607 | others - dial ring(set) |
| 87335664 | others - bezel |
| 87335669 | others - bezel |