The Seiko 7N42-0BA0 is a watch model based on the 7N42 movement.
Parts List
| 290AA0LN03 | crystal - crystal |
| 8K50H2SNW1 | crown - crown |
| 0F270BAAS | case back gasket - case back gasket |
| F201JB | band - band |
| F200JB | band - band |
| 1AF075ABBES | others - hour hand |
| 2BF115A2BES | others - minute hand |
| 82737920 | others - case ring |
| 81180249 | others - bracelet fixing pipe |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 7N420BA002Z | others - case |
| 7N420BA003C | others - case |
| 7N420BA005C | others - case |
| 7N420BA0 | others - case back |
| 0878580 | others - date dial |
| 7N420CB4XL13 | others - dial |
| 7N420CB4XL23 | others - dial |
| 7N420CB4XN13 | others - dial |
| 7N420CB4XZ13 | others - dial |
| 7N423 | others - machine code |
| 7N420BA001C | others - case |
| 81606709 | others - bracelet fixing pin |
| 7N420BA002C | others - case |
| 3AA125F6ANS | others - second hand |