The Seiko 1E20-2A50 is a watch model based on the 1E20 movement.
Parts List
| 110A12SR01 | crystal - crystal |
| 6M25A0KTGA | crown - crown |
| 0F100NA1S | case back gasket - case back gasket |
| XX000 | band - band |
| 04VC8AEM | others - minute hand |
| 04VC8CEH | others - hour hand |
| 82722960 | others - case ring |
| 1E202A5093 | others - case |
| 1E202A5093A | others - case |
| 1E202A5093B | others - case |
| 1E205D00XS14 | others - dial |
| 1E207 | others - machine code |
| 0351931 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1E20
