The Seiko 7N42-0BS0 is a watch model based on the 7N42 movement.
Parts List
| 300A03SN02 | crystal - crystal (sapphire) |
| 8K60C8SNW1 | crown - crown |
| 0F280BAD2 | case back gasket - case back gasket |
| 33K6JB | band - band |
| OF290NA1S | hand |
| 1AC082FBBEB | others - hour hand |
| 2BC110FCBEB | others - minute hand |
| 3AX120F0AEB | others - second hand |
| 3AX120F0AEW | others - hand |
| 1AC082FBBEW | others - hour hand |
| 2BC110FCBEW | others - minute hand |
| A120BS | others - push pin (for lb) |
| 0878580 | others - date dial |
| 7N420DC8XB13 | others - dial |
| 7N420DC8XS1Z | others - dial |
| 7N420DD8XB19 | others - dial |
| 7N423 | others - machine code |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 82824420 | others - case ring |
| 7N420BS001B | others - case |
| 7N420BS0 | others - case back |