The Seiko 7N42-7B10 is a watch model based on the 7N42 movement.
Parts List
| 280P03HN03 | crystal - crystal |
| 50MA2NS1 | crown - crown |
| FH2980B01 | case back gasket - case back gasket |
| 86177921 | crystal gasket - plastic gasket for crystal |
| 86178600 | bezel gasket - plastic gasket for bezel |
| 44A2JM | band - band |
| 44A2JM-LKS | band - link |
| 44A2JM-BK2S | clasp - buckle |
| 44A2JM-PB1 | clasp - parts for buckle |
| 2BA115S0BNS | others - minute hand |
| 1AA080S4BAN | others - hour hand |
| 81190055 | others - bracelet fixing pipe |
| 81611609 | others - bracelet fixing pin |
| 82830140 | others - case ring |
| 7N427B1061Z | others - case |
| 82291549 | others - bezel |
| 7N427B10 | others - case back |
| 0878580 | others - date dial |
| 0351892 | others - winding stem |
| 7N423 | others - machine code |
| 7N427C08XG13 | others - dial |
| 7N427C08XG23 | others - dial |
| 7N427C08XN13 | others - dial |
| 7N427C08XS13 | others - dial |
| 0Z0060B01 | others - crown and stem gasket |
| 3AX115F5ANS | others - second hand |