The Seiko 7N42-0CS0 is a watch model based on the 7N42 movement.
Parts List
| 300P18HR02 | crystal - crystal (inorganic) |
| 8K50AVSNW1 | crown - crown (3h) |
| 8K50AVSNG1 | crown - crown (3h) |
| FE318BAD2 | case back gasket - case back gasket |
| 86178611 | crystal gasket - plastic gasket for crystal |
| 86178610 | crystal gasket - plastic gasket for crystal |
| 34Q7JZ | band - band |
| 34Q8JZ | band - band |
| 1AX080GBBEG | others - hour hand |
| 1BX077F0BES | others - hour hand |
| 2BX115F4BE1 | others - minute hand |
| 3AA135F0A4M | others - hand |
| 2AX115F4BEG | others - minute hand |
| 3AX135F0AR9 | others - second hand |
| 3AA135F0AAP | others - second hand |
| 3AA135F0AA8 | others - hand |
| 2AX115F4BES | others - minute hand |
| 3AX135F0AEG | others - second hand |
| 3AX135F0AE7 | others - hand |
| 1AX080GBBES | others - hour hand |
| A100BS | others - push pin (for mb) |
| 0878580 | others - date dial |
| 7N420ES8X913 | others - dial |
| 7N420ES8X923 | others - dial |
| 7N420ES8X933 | others - dial |
| 7N420ES8X944 | others - dial |
| 7N420ET8XB19 | others - dial |
| 7N420ET8XL19 | others - dial |
| 7N420ET8XS19 | others - dial |
| 7N423 | others - machine code |
| 7N420CS005B | others - case |
| 7N420CS004B | others - case |
| 82832120 | others - case ring |
| 0351892 | others - winding stem |
| 7N420CS0 | others - case back |
| 7N420CS002B | others - case |
| 7N420CS003B | others - case |
| AD006BAD1 | others - crown and stem gasket |
| 7N420CS001B | others - case |