The Seiko 7N42-0AA0 is a watch model based on the 7N42 movement.
Parts List
| 260P58JN02 | crystal - crystal |
| 8K45F0SNW1 | crown - crown |
| FE298BAD2 | case back gasket - case back gasket |
| 3105JZ | band - band |
| 3105JZ-LK2 | band - link |
| 3105JZ-PB4 | clasp - parts for buckle |
| 3105JZ-BKD | clasp - buckle |
| 3AA125F1ANG | others - second hand |
| 3AA125F1AAW | others - second hand |
| 2BC110FCBEG | others - minute hand |
| 2BC110FCBES | others - minute hand |
| 1AC082FABEG | others - hour hand |
| 1AC082FABES | others - hour hand |
| 0351892 | others - winding stem |
| AD006BAD1 | others - crown and stem gasket |
| 86177531 | others - crystal plastic gasket |
| 7N420AA001D | others - case |
| 82359324 | others - rotating bezel |
| 82738200 | others - case ring |
| 0E290BA1S | others - rotating bezel gasket |
| 7N420AA0 | others - case back |
| 7N420AA002D | others - case |
| 82359326 | others - rotating bezel |
| 7N420AA003D | others - case |
| 82359325 | others - rotating bezel |
| 7N420AA004D | others - case |
| 82359328 | others - rotating bezel |
| 7N420AA006D | others - case |
| 82359327 | others - rotating bezel |
| 0878587 | others - date dial |
| 0878589 | others - date dial |
| 7N420AF8XB19 | others - dial |
| 7N420AF8XL19 | others - dial |
| 7N420AF8XL29 | others - dial |
| 7N420AF8XN19 | others - dial |
| 7N420AF8XY19 | others - dial |
| 7N423 | others - machine code |
| S180BS | others - push pin |