The Seiko 1E20-2A00 is a watch model based on the 1E20 movement.
Parts List
| 115N08SC01 | crystal - crystal |
| 115N08SJ03 | crystal - crystal |
| 6M30B2STG1 | crown - crown |
| 0E100NA1S | case back gasket - case back gasket |
| B5480 | band - band |
| B5674 | band - band |
| B5676 | band - band |
| 04V14DGH | others - hour hand |
| 04V14DGM | others - minute hand |
| 81606439 | others - bracelet fixing pin |
| 82722960 | others - case ring |
| 81190055 | others - bracelet fixing pipe |
| 1E202A0025A | others - case |
| 1E202A00 | others - case back |
| 1E202A0025B | others - case |
| 1E205B30XE14 | others - dial |
| 1E205B30XL14 | others - dial |
| 1E205B30XS14 | others - dial |
| 1E208 | others - machine code |
| 0351931 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
