The Seiko 7N42-7C10 is a watch model based on the 7N42 movement.
Parts List
| 330P03HN03 | crystal - crystal (inorganic) |
| 330P03SN03 | crystal - crystal |
| 8K40B3SNS0 | crown - crown |
| 8K40B3SNG0 | crown - crown |
| FE308BAD2 | case back gasket - case back gasket |
| 86566900 | crystal gasket - crystal plastic gasket |
| 86566901 | crystal gasket - plastic gasket for crystal |
| 86583220 | bezel gasket - plastic gasket for bezel |
| 30N7JB | band - band |
| 30N7JB-LK1 | band - link |
| 30N7JB-PB4 | clasp - parts for buckle |
| 30N7JB-BKD | clasp - buckle |
| 1AX085FMBEM | others - hour hand |
| 1AX085FMBEN | others - hour hand |
| 2BX130F0BEM | others - minute hand |
| 2BX130F0BEN | others - minute hand |
| 3AA135F1AAW | others - second hand |
| 3AA135F1ANB | others - second hand |
| 3AA135F1ANS | others - hand |
| 82737920 | others - case ring |
| 7N427C1001D | others - case |
| 82347689 | others - bezel |
| 7N427C10 | others - case back |
| AD006BAD1 | others - crown and stem gasket |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 1AX085FMBEC | others - hour hand |
| 0351892 | others - winding stem |
| 7N427C1002D | others - case |
| 7N427C1003D | others - case |
| 82347709 | others - bezel |
| 7N427C1005D | others - case |
| 82348149 | others - bezel |
| 7N427C1006D | others - case |
| 0878580 | others - date dial |
| 0878587 | others - date dial |
| 7N420AA8XB13 | others - dial |
| 7N420AA8XS13 | others - dial |
| 7N423 | others - machine code |
| 7N427D68XB13 | others - dial |
| 7N427D68XL13 | others - dial |
| 7N427D68XS13 | others - dial |
| 84331944 | others - dial ring |
| 84331945 | others - dial ring |
| 84331946 | others - dial ring |
| 2BX130F0BEC | others - minute hand |