The Seiko 1E20-3D00 is a watch model based on the 1E20 movement.
Parts List
| RE3A42JZ0C | crystal - crystal |
| RE3A42JZ0D | crystal - crystal |
| 30ML2NA1 | crown |
| 30ML2NS1 | crown - crown |
| 0F160BA1S | case back gasket - case back gasket |
| C063AB | band - band |
| C064AB | band - band |
| C065BB | band - band |
| 1CE027L0BDS | others - hour hand |
| 2CE040L0BDG | others - minute hand |
| 2CE040L0BDS | others - minute hand |
| 81190055 | others - bracelet fixing pipe |
| 81611939 | others - bracelet fixing pin |
| 1E203D0075 | others - case |
| 82839960 | others - case ring |
| 1E203D007E | others - case |
| 1E203D00 | others - case back |
| 1E205D70XA14 | others - dial |
| 1E205D70XA53 | others - dial |
| 1E205D70XA93 | others - dial |
| 1E207 | others - machine code |
| 0351931 | others - winding stem |
| 1CE027L0BDG | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1E20
