The Seiko 7N42-0DB0 is a watch model based on the 7N42 movement.
Parts List
| SA0AS8JN02 | crystal - crystal (inorganic) |
| 8K50BSSNN1 | crown - crown (3h) |
| 8K50BSSNW1 | crown - crown (3h) |
| 0F320BAAS | case back gasket - case back gasket |
| F2M6LG | band - metal band |
| F2M7NG | band - metal band |
| F2J8JG | band - band |
| F2J9JG | band - band |
| 1AX075L2BES | others - hour hand |
| 1AX080FTBEZ | others - hour hand |
| 2AA120L0BE2 | others - minute hand |
| 2AX110L0BES | others - minute hand |
| 2BX120FMBEZ | others - minute hand |
| 3BA135F3BNP | others - second hand |
| 1AX080FTBE3 | others - hour hand |
| 2BX120FMBE3 | others - minute hand |
| 3AA120FMAZL | others - second hand |
| 3AA120FMANS | others - second hand |
| 3AA120FMANG | others - second hand |
| 3AA120FMAAP | others - second hand |
| 3AA120FMAAX | others - second hand |
| 3AA120FMAAZ | others - hand |
| 3BA135F3BNS | others - hand |
| 1AX080FTBES | others - hour hand |
| 2BX120FMBES | others - minute hand |
| 1AA080L2BEG | others - hour hand |
| 7N420DB003C | others - case |
| 7N420DB004C | others - case |
| 7N420DB005C | others - case |
| 7N420DB002C | others - case |
| 7N420DB001C | others - case |
| 0351892 | others - winding stem |
| AD006BAD1 | others - crown and stem gasket |
| 81180209 | others - bracelet fixing pipe |
| 82770220 | others - case ring |
| 81607069 | others - bracelet fixing pin |
| 7N420DB0 | others - case back |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420FF4X913 | others - dial |
| 7N420FF4XE13 | others - dial |
| 7N420FF4XL13 | others - dial |
| 7N420FF4XR13 | others - dial |
| 7N420FF4XS1Z | others - dial |
| 7N420FF4XY1Z | others - dial |
| 7N420FF4XZ13 | others - dial |
| 7N420FS4X915 | others - dial |
| 7N420FT4X915 | others - dial |
| 7N423 | others - machine code |
| S200CS | others - push pin |