The Seiko 8J41-0A20 is a watch model based on the 8J41 movement.
Parts List
| 270A42SB0A | crystal - crystal |
| 6K30A4SNWA | crown - crown (3h) |
| 0F280BAD2 | case back gasket - case back gasket |
| D1M5AZ-LK00 | band - link |
| D1M5AZ | band - band |
| D1M5AZ-BK00 | clasp - clasp |
| 1BB080LBBDG | others - hour hand |
| 1BB080LBBDS | others - hour hand |
| 2BB112LCBDG | others - minute hand |
| 2BB112LCBDS | others - minute hand |
| 3EA110A0BDS | others - second hand |
| 81604259 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 81190055 | others - bracelet fixing pipe |
| 0351406 | others - winding stem |
| 8J410A2001A | others - case |
| 82837560 | others - case ring |
| 8J410A20 | others - case back |
| 8J410A2002A | others - case |
| 8J410A30XL13 | others - dial |
| 8J410A30XN13 | others - dial |
| 8J410A30XS13 | others - dial |
| 8J410A30XS24 | others - dial |
| 8J411 | others - machine code |
| D1M5AZ-BKPN | others - pin for buckle/clasp |
| AC004BAD1 | others - crown and stem gasket |
| D1M5AZ-LKPN | others - pin for link |
| 3DA110AAA7S | others - second hand |
| 3DA110AAADG | others - second hand |
| 3EA110A0BDG | others - second hand |