The Seiko 5E20-5B80 is a watch model based on the 5E20 movement.
Parts List
| REDN34SN01 | crystal - crystal |
| 25M04EX1 | crown - crown |
| 0E280NA1S | case back gasket - rotating bezel gasket |
| XX000 | band - band |
| 1BD057A0BNS | others - hour hand |
| 2BC090A0BNS | others - minute hand |
| 5E205B8044 | others - case |
| 82823540 | others - case ring |
| 5E205 | others - machine code |
| 5E205C80XS13 | others - dial |
| 0351624 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 5E20
