The Seiko 7N42-0BZ0 is a watch model based on the 7N42 movement.
Parts List
| 320P20HN02 | crystal - crystal (inorganic) |
| 8K55ARSNG1 | crown - crown (3h) |
| 8K55ARTAA1 | crown - crown |
| FE328BAD2 | case back gasket - case back gasket |
| 86566880 | crystal gasket - plastic gasket for crystal |
| 86566881 | crystal gasket - plastic gasket for crystal |
| 86566860 | bezel gasket - plastic gasket for bezel |
| 33Q6MG | band - band |
| 33Q6MG-LK | band - link |
| 33Q6MG-BK | clasp - buckle |
| 33Q6MG-PB | clasp - parts for buckle |
| H00W14TA00G | clasp - clasp |
| 3AX125F3AEG | others - second hand |
| 3AX125F3ASD | others - hand |
| 1AA082LBBES | others - hour hand |
| 2BA120LDBES | others - minute hand |
| 1AA082LBBEG | others - hour hand |
| 2BA120LDBEG | others - minute hand |
| 81190075 | others - bracelet fixing pipe |
| 81607719 | others - bracelet fixing pin |
| 82736540 | others - case ring |
| 0351892 | others - winding stem |
| 7N420BZ002B | others - case |
| 7N420BZ003B | others - case |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420BZ001B | others - case |
| 85934004 | others - bezel |
| 7N420BZ0 | others - case back |
| 7N420DR8XB13 | others - dial |
| 7N420DR8XL14 | others - dial |
| 7N420DR8XS1Z | others - dial |
| 7N423 | others - machine code |
| 84353187 | others - dial ring |
| 84353189 | others - dial ring |
| 8435318A | others - dial ring |
| AD006BAD1 | others - crown and stem gasket |