The Seiko 1E20-0180 is a watch model based on the 1E20 movement.
Parts List
| 235W02GN00 | crystal - crystal |
| 40M96NA1 | crown - crown |
| FH2580B01 | case back gasket |
| 86570860 | crystal gasket - plastic gasket for crystal |
| GS01A | band - band |
| 09V08ZGH | others - hour hand |
| 09V08ZGM | others - minute hand |
| 0354931 | others - winding stem |
| 82722960 | others - case ring |
| 1E200180XZ | others - case |
| 1E200600XB12 | others - dial |
| 1E208 | others - machine code |
| 87020120 | others - back plate |
| 0351931 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1E20
