The Seiko 8J41-5020 is a watch model based on the 8J41 movement.
Parts List
| SA2A85SN02 | crystal - crystal |
| 6M25Z7SNGB | crown - crown |
| 6M25Z7NDGB | crown |
| 0F240BA1S | case back gasket - case back gasket |
| D143CG | band - band |
| D143CG-BK00 | clasp - clasp |
| 3DA090AAADG | others - second hand |
| 1BB065A1BAF | others - hour hand |
| 2BB095A1BAF | others - minute hand |
| 81180249 | others - bracelet fixing pipe |
| 81601389 | others - bracelet fixing pin |
| 8J415020SFA | others - case |
| 82838270 | others - case ring |
| 8J415020 | others - case back |
| 8J411 | others - machine code |
| 8J415020XS14 | others - dial |
| 0351405 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |