The Seiko 1E20-5750 is a watch model based on the 1E20 movement.
Parts List
| ESGN34JR01 | crystal |
| ESGN34JR02 | crystal |
| 30M68NA1 | crown - crown |
| 0H1200N01 | case back gasket |
| HZ36A | band - metal band |
| HZ37A | band - metal band |
| 03V12DGH | others - hour hand |
| 03V12DGM | others - minute hand |
| 0351931 | others - winding stem |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82722120 | others - case ring |
| 1E201230XB14 | others - dial |
| 1E201230XN14 | others - dial |
| 1E20575025 | others - case |
| 1E2057502N | others - case |
| 1E208 | others - machine code |
| 0354930 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
