The Seiko 1E20-3A00 is a watch model based on the 1E20 movement.
Parts List
| BA0A32SR02 | crystal - crystal |
| 35M2TNA1 | crown - crown |
| 35M2TNH1 | crown - crown |
| 0F220NA1S | case back gasket - case back gasket |
| DAV6AB | band - band |
| DAT9BW | band - band |
| DAV3BB | band - leather band |
| 03V26ALH | others - hour hand |
| 04VB8ALM | others - minute hand |
| 0351931 | others - winding stem |
| 1E205A00XS14 | others - dial |
| 1E205A00XS24 | others - dial |
| 1E207 | others - machine code |
| A120AS | others - push pin |
| 1E203A0071 | others - case |
| 82835840 | others - case ring |
| 1E203A00 | others - case back |
| 1E203A0075 | others - case |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1E20
