The Seiko 7N42-0DC0 is a watch model based on the 7N42 movement.
Parts List
| RE1AE4JN02 | crystal - crystal (inorganic) |
| 8K60C8SNW1 | crown - crown |
| 0F340BAD2 | case back gasket - case back gasket |
| 35B3JZ | band - band |
| 35B3JZ-LK | band - link |
| 35B3JZ-BK | clasp - buckle |
| 35B3JZ-PB | clasp - parts for buckle |
| 3AX110F3AES | others - second hand |
| 1AE067FABES | others - hour hand |
| 2AE100FBBES | others - minute hand |
| 82770320 | others - case ring |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420DC001B | others - case |
| 7N420DC0 | others - case back |
| 7N420FJ8XB13 | others - dial |
| 7N420FJ8XS13 | others - dial |
| 7N423 | others - machine code |
| S260CS | others - push pin |