The Seiko 7N42-0AZ0 is a watch model based on the 7N42 movement.
Parts List
| 310A68HN02 | crystal - crystal |
| 8K50J0SNW1 | crown - crown (3h) |
| 0F280BA1S | case back gasket - case back gasket |
| ECN1JB | band - band |
| E0V0JB | band - band |
| E0V1JB | band - band |
| E0V1JB-LK00 | band - link |
| ECN0JB | band - band |
| E0V1JB-BK00 | clasp - clasp |
| 1AA085L0BES | others - hour hand |
| 2AA120L0BES | others - minute hand |
| 1AG080LABTB | others - hour hand |
| 2AG120LBBTB | others - minute hand |
| 3AA125F3ANS | others - second hand |
| 1AG080LABES | others - hour hand |
| 2AG120LBBES | others - minute hand |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 7N420AZ001C | others - case |
| 82832120 | others - case ring |
| 7N420AZ002C | others - case |
| E0V1JB-BKPP | others - spring bar for buckle/clasp |
| E0V1JB-EP00 | others - endpiece |
| E0V1JB-LKPN | others - pin for link |
| S180BS | others - push pin |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 0878617 | others - date dial |
| 0878618 | others - date dial |
| 7N420CA4XB13 | others - dial |
| 7N420CA4XN13 | others - dial |
| 7N420CA4XY13 | others - dial |
| 7N420CL4XB13 | others - dial |
| 7N420CL4XS13 | others - dial |
| 7N423 | others - machine code |
| 3AA125F3ANB | others - second hand |