The Seiko 1E20-2240 is a watch model based on the 1E20 movement.
Parts List
| 155A02SN02 | crystal - crystal |
| 25M18TX1 | crown - crown |
| 0F130BA1S | case back gasket - case back gasket |
| AD006BAA1 | pusher - button gasket |
| XX000 | band - band |
| 1CC040AABNG | others - hour hand |
| 2EC060AABNG | others - minute hand |
| 0351931 | others - winding stem |
| 82838260 | others - case ring |
| 81611979 | others - pin |
| EZ0035B0D | others - crown and stem gasket |
| 1E2022406EA | others - case |
| 81620219 | others - pin |
| 1E202240 | others - case back |
| 1E205430XA14 | others - dial |
| 81351710 | others - spring |
Caliber 1E20
