The Seiko 7N42-8A10 is a watch model based on the 7N42 movement.
Parts List
| 290W36GN00 | crystal |
| 8M35A0NNG1 | crown - crown |
| 0F260NA1S | case back gasket - case back gasket |
| 86574980 | crystal gasket - crystal gasket |
| 86574981 | crystal gasket |
| 86178750 | bezel gasket - plastic gasket for bezel |
| BPB01K | band |
| BPK26K | band |
| BPK27K | band |
| 11C14ALH | others - hour hand |
| 1AD080AMBAA | others - hour hand |
| 3AA125F3ANG | others - second hand |
| 82830140 | others - case ring |
| 0878580 | others - date dial |
| 0878588 | others - date dial |
| 0878589 | others - date dial |
| 7N423 | others - machine code |
| 7N428A10 | others - case back |
| 7N428A1075Y | others - case |
| 7N428A1075Z | others - case |
| 7N428A48XS14 | others - dial |
| 7N428A58XB14 | others - dial |
| 7N428A58XG14 | others - dial |
| 82284801 | others - bezel |
| A180BS | others - push pin |
| 0351892 | others - winding stem |
| 2AD130S0BNG | others - minute hand |
| AD006BA12 | others - crown gasket |
| 2AD120A2BAA | others - minute hand |
| 1AD095S0BNG | others - hour hand |
| 12CC8FGM | others - minute hand |