The Seiko 1E20-5600 is a watch model based on the 1E20 movement.
Parts List
| ESFN22JN01 | crystal |
| 30M68NA1 | crown - crown |
| 0H1500N01 | case back gasket - case back gasket |
| ZS18A | band - metal band |
| 1E201010XG14 | others - dial |
| 1E20560025 | others - case |
| 1E208 | others - machine code |
| 82734960 | others - case ring |
| B080AS | others - push pin |
| 0351931 | others - winding stem |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 04V04DGM | others - minute hand |
| 04V04NGH | others - hour hand |
Caliber 1E20
