The Seiko 7N42-0EX0 is a watch model based on the 7N42 movement.
Parts List
| 300AC2JN02 | crystal - crystal (inorganic) |
| 8K45B3SNS0 | crown - crown |
| 8K45B3SNG2 | crown - crown |
| 0F270BAD2 | case back gasket - case back gasket |
| M06R1CLK | band - link |
| M06R1JLK | band - link |
| M06R1KLK | band - link |
| M06R221C0 | band - metal band |
| M06R221C9 | band - metal band |
| M06R221J0 | band - metal band |
| M06R221J9 | band - metal band |
| M06R221K0 | band - metal band |
| M06R221K9 | band - metal band |
| M06R222K9 | band - metal band |
| M06R2KLK | band - link |
| H00P14SA14D | clasp - clasp |
| H00P14SA15D | clasp - clasp |
| H00P14SE05D | clasp - clasp |
| H00P14SE06D | clasp - clasp |
| H00P14SE07D | clasp - clasp |
| 1AD085S0BAM | hand - hour hand |
| 1BG082L0BD9 | hand - hour hand |
| 1BG082L0BDG | hand - hour hand |
| 2AD125S0BAM | hand - minute hand |
| 2BG130L0BD9 | hand - minute hand |
| 2BG130L0BDG | hand - minute hand |
| 3AA125F0ANG | others - second hand |
| 3AA125F0ANS | others - second hand |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 82737920 | others - case ring |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420EX0 | others - case back |
| 7N420EX001A | others - case |
| 7N420EX001B | others - case |
| 7N420EX002A | others - case |
| 7N420EX002B | others - case |
| 7N420EX003A | others - case |
| 7N420EX003B | others - case |
| 7N420EX004B | others - case |
| 7N420HP0XB13 | others - dial |
| 7N420HP0XG14 | others - dial |
| 7N420HP0XS14 | others - dial |
| 7N420HP0XS23 | others - dial |
| 7N420HP8XB13 | others - dial |
| 7N420HP8XG14 | others - dial |
| 7N420HP8XS14 | others - dial |
| 7N420HP8XS23 | others - dial |
| 7N420HR0XS13 | others - dial |
| 7N420HR8X914 | others - dial |
| 7N420HR8XS13 | others - dial |
| 7N423 | others - machine code |
| M06R21CEP | others - endpiece |
| M06R21JEP | others - endpiece |
| M06R21KEP | others - endpiece |
| M06R22KEP | others - endpiece |
| S180CS | others - push pin |
| Z160TS | others - push pin (clasp and band) |
| 2AD125S0BAC | others - minute hand |
| 1AD085S0BAC | others - hour hand |