The Seiko 7N42-0BM0 is a watch model based on the 7N42 movement.
Parts List
| 310PA0JN02 | crystal - crystal |
| 8K55C6SNW1 | crown - crown (3h) |
| 0F280BAD2 | case back gasket - case back gasket |
| 86565100 | crystal gasket - plastic gasket for crystal |
| 86179152 | crystal gasket - plastic gasket for crystal |
| 33E9JB | band - band |
| 33E9JB-LK | band - link |
| 33E9JB-PB | clasp - parts for buckle |
| 1AA085L0BTE | others - hour hand |
| 2AA120L0BTE | others - minute hand |
| 3AX120F0ASS | others - second hand |
| 2AA120L0BTC | others - minute hand |
| 1AA085L0BTC | others - hour hand |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 7N420BM0 | others - case back |
| 7N420BM001B | others - case |
| 81180189 | others - bracelet fixing pipe |
| 81613149 | others - bracelet fixing pin |
| 82736540 | others - case ring |
| 7N420BM002B | others - case |
| 7N420BM003B | others - case |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420CW8XB13 | others - dial |
| 7N420CW8XL13 | others - dial |
| 7N420CW8XS13 | others - dial |
| 7N423 | others - machine code |
| 84352884 | others - dial ring |
| 84352885 | others - dial ring |
| 84352886 | others - dial ring |