The Seiko 7N89-0420 is a watch model based on the 7N89 movement.
Parts List
| 200A02JN02 | crystal - crystal |
| 8M35C0NMG1 | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| 44N7KM | band - band |
| 44N7MM | band - band |
| 44N7LM | band - band |
| 44N7DM | band - band |
| 44N7BM | band - band |
| 44N7BM-LK2 | band - link |
| 44N7DM-LK2 | band - link |
| 44N7KM-LK2 | band - link |
| 44N7LM-LK2 | band - link |
| 44N7MM-LK2 | band - link |
| 44N7BM-BKJ | clasp - buckle |
| 44N7BM-PB1 | clasp - parts for buckle |
| 44N7KM-BKJ | clasp - buckle |
| 44N7KM-PB1 | clasp - parts for buckle |
| 44N7MM-BKF | clasp - buckle |
| 44N7MM-PB1 | clasp - parts for buckle |
| 44N7DM-BKF | clasp - buckle |
| 44N7DM-PB1 | clasp - parts for buckle |
| 44N7LM-BKF | clasp - buckle |
| 44N7LM-PB1 | clasp - parts for buckle |
| 2AC080A1BAP | others - minute hand |
| 1BB057A1BNG | others - hour hand |
| 1AC057A1BNG | others - hour hand |
| 1AC057A1BAM | others - hour hand |
| 81190875 | others - bracelet fixing pipe |
| 81606899 | others - bracelet fixing pin |
| 81190155 | others - bracelet fixing pipe |
| 82852610 | others - case ring |
| 7N89042075A | others - case |
| 7N890420 | others - case back |
| 0351892 | others - winding stem |
| 7N8904207HB | others - case |
| 7N89042075B | others - case |
| 7N8904207HA | others - case |
| 7N890 | others - machine code |
| 7N890780XS19 | others - dial |
| 7N890781XS19 | others - dial |
| 7N890781XS29 | others - dial |
| 7N890790XG14 | others - dial |
| 7N890791XG14 | others - dial |
| 7N890791XL14 | others - dial |
| 7N890791XS14 | others - dial |
| 7N8904207HD | others - case |
| 0878590 | others - date dial |
| 0878605 | others - date dial |
| 0878607 | others - date dial |
| 0878608 | others - date dial |
| 2BB080A1BNG | others - minute hand |
| AD006BA12 | others - crown gasket |
| 2AC080A1BNG | others - minute hand |