The Seiko 1E20-0D80 is a watch model based on the 1E20 movement.
Parts List
| ESFW33SJ01 | crystal |
| 25M27DA4 | crown |
| 0F110BAA1 | case back gasket - case back gasket |
| DK29D | band - leather band |
| DZ0040B01 | others - crown and stem gasket |
| 0351931 | others - winding stem |
| 05L05DHH | others - hour hand |
| 1E200D80 | others - case back |
| 1E200D8076A | others - case |
| 1E200D90XB19 | others - dial |
| 1E208 | others - machine code |
| 82841110 | others - case ring |
| A110AS | others - push pin |
| 05L05JGH | others - hour hand |
| 05V17DGM | others - minute hand |
Caliber 1E20
