The Seiko 1E20-2150 is a watch model based on the 1E20 movement.
Parts List
| 120A05JN02 | crystal - crystal |
| 30ML2ES1 | crown - crown |
| 0F100BA1S | case back gasket - case back gasket |
| D0X1AB | band - band |
| D0X2AB | band - band |
| D0X3AB | band - metal band |
| D0X4AB | band - metal band |
| 1CA030A1BAX | others - hour hand |
| 1CA030A1BNS | others - hour hand |
| 2EA047A1BAL | others - minute hand |
| 2EA047A1BNS | others - minute hand |
| 81606439 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 1E20215079A | others - case |
| 82836630 | others - case ring |
| 81611939 | others - bracelet fixing pin |
| 81616439 | others - bracelet fixing pin |
| 1E202150 | others - case back |
| 1E2021507EA | others - case |
| 1E205280XS13 | others - dial |
| 1E205290XS19 | others - dial |
| 1E208 | others - machine code |
| 0351931 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1E20
