The Seiko 8J80-7020 is a watch model based on the 8J80 movement.
Parts List
| 170A25S30A | crystal |
| 280A02SN01 | crystal - crystal (sapphire) |
| 6M25Z7KDGA | crown - crown |
| 6M25Z7SNWA | crown |
| 6M25Z7KDGB | crown - crown (3h) |
| 6M25Z7KDWB | crown - crown |
| 0F160BAD2 | case back gasket - case back gasket |
| 0F260NA1S | case back gasket - case back gasket |
| 0F260BAD2 | case back gasket - case back gasket |
| A067DB | band - band |
| AB01BW | band - band |
| AB05DW | band - band |
| AB03AW | band - band |
| AB03HW | band - band |
| 1BB080A2BJL | others - hour hand |
| 2BB120A2BHL | others - minute hand |
| 2BB120A2BHS | others - minute hand |
| 1BB080A2BJG | others - hour hand |
| 1BB080A2BJH | others - hour hand |
| 1BB080A2BJS | others - hour hand |
| 2BB120A2BHG | others - minute hand |
| 2BB120A2BHH | others - minute hand |
| 1BH045AABJJ | others - hour hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351406 | others - winding stem |
| 82836230 | others - case ring |
| 8J8070206EA | others - case |
| 8J80702093A | others - case |
| A180AS | others - push pin |
| 8J80702093B | others - case |
| 2BH067AABJJ | others - minute hand |
| 3DA065AABHJ | others - second hand |