The Seiko 7N42-0AP0 is a watch model based on the 7N42 movement.
Parts List
| 300P28HN02 | crystal - crystal (inorganic) |
| 8K45B3SNS0 | crown - crown |
| FE308BA13 | case back gasket - case back gasket |
| 86178610 | crystal gasket - plastic gasket for crystal |
| 86178990 | bezel gasket - plastic gasket for bezel |
| 31B7JZ | band - band |
| 31B7JZ-LK | band - link |
| 31B7JZ-BK | clasp - buckle |
| 31B7JZ-PB | clasp - parts for buckle |
| 3AA125F3ANS | others - second hand |
| 1AC080F2BEW | others - hour hand |
| 2AC120FABEW | others - minute hand |
| 0351892 | others - winding stem |
| AD006BAD1 | others - crown and stem gasket |
| 0878587 | others - date dial |
| 81180249 | others - bracelet fixing pipe |
| 81606809 | others - bracelet fixing pin |
| 82737920 | others - case ring |
| 7N420AP001D | others - case |
| 85930469 | others - bezel |
| 7N420AP0 | others - case back |
| 7N420BF8XB13 | others - dial |
| 7N423 | others - machine code |
| 84350364 | others - dial ring |