The Seiko 7N42-6C50 is a watch model based on the 7N42 movement.
Parts List
| 290P30JR03 | crystal - crystal |
| 1E55D6SNW1 | crown - crown |
| FE308BAD2 | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 30Q4JM | band - band |
| 30Q4JM-LK2 | band - link |
| 30Q4JM-BKC | clasp - buckle |
| 30Q4JM-PB3 | clasp - parts for buckle |
| 1AC082FABSS | others - hour hand |
| 2BC110FCBSS | others - minute hand |
| 3AA125F1ANS | others - second hand |
| 81331969 | others - bezel spring |
| 7N426C5002D | others - case |
| 0878587 | others - date dial |
| 0Z3214B02 | others - rotating bezel gasket |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82737920 | others - case ring |
| 7N426C5001D | others - case |
| 86323849 | others - rotating bezel |
| 7N426C50 | others - case back |
| 7N423 | others - machine code |
| 7N426D18XB19 | others - dial |
| 7N426D18XL19 | others - dial |
| 84332404 | others - dial ring |
| 84332405 | others - dial ring |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |