The Seiko 7N42-0DG0 is a watch model based on the 7N42 movement.
Parts List
| 340PA6HN02 | crystal - crystal (inorganic) |
| 8K55ARSNW7 | crown - crown (3h) |
| 8K55ARSNW8 | crown - crown (3h) |
| 8K55ARSNW6 | crown - crown (3h) |
| FE318BAD2 | case back gasket - case back gasket |
| 86578940 | crystal gasket - plastic gasket for crystal |
| 86578941 | crystal gasket - plastic gasket for crystal |
| 86622310 | bezel gasket - plastic gasket for bezel |
| 35F0JG | band - metal band |
| 35F0JG-LK | band - link |
| 35F0JG-BK | clasp - buckle |
| 35F0JG-PB | clasp - parts for buckle |
| 3AX125F3AZZ | others - second hand |
| 1AA072FBBES | others - hour hand |
| 2BA115FBBES | others - minute hand |
| 3AX125F3AZK | others - hand |
| 3AX125F3AED | others - second hand |
| 7N420DG0 | others - case back |
| 7N420DG001B | others - case |
| 7N420DG002B | others - case |
| 7N420DG003B | others - case |
| 87330029 | others - bezel |
| 87330049 | others - bezel |
| 0351892 | others - winding stem |
| 81190075 | others - bracelet fixing pipe |
| 81606619 | others - bracelet fixing pin |
| 82736540 | others - case ring |
| AD006BAD1 | others - crown and stem gasket |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420FM8XB13 | others - dial |
| 7N420FM8XL13 | others - dial |
| 7N420FM8XS13 | others - dial |
| 7N423 | others - machine code |
| 84380124 | others - dial ring |
| 84380125 | others - dial ring |
| 84380126 | others - dial ring |