The Seiko 7N42-6A1A is a watch model based on the 7N42 movement.
Parts List
| SACW24JU01 | crystal |
| 8M45A0SNW1 | crown - crown |
| 0A2700B01 | case back gasket - gasket |
| 86582180 | crystal gasket |
| Z1631S-LKS | band - link |
| Z1631S | band |
| Z1631S-BK2S | clasp - clasp |
| Z1631S-PB1 | clasp - parts for buckle/clasp |
| 0351892 | others - winding stem |
| 82830140 | others - case ring |
| 0878617 | others - date dial |
| 7N423 | others - machine code |
| 7N426A1A | others - case back |
| 7N426A1A61 | others - case |
| 7N426A1LX923 | others - dial |
| 84322524 | others - dial ring |
| A180BS | others - push pin |
| 3AX130F2ALA | others - second hand |
| 2AB115S0BLS | others - minute hand |
| 1AB075S0BLS | others - hour hand |
| AD006BA12 | others - crown gasket |