The Seiko 2E20-5720 is a watch model based on the 2E20 movement.
Parts List
| REFN23JV01 | crystal |
| 30M39NA1 | crown |
| 0F130NA11 | case back gasket |
| G5064C | band - metal band |
| G5064C-LKS | band - link |
| G5064C-BK4S | clasp - clasp |
| DA007BA11 | others - crown and stem gasket |
| 2E200950XG14 | others - dial |
| 2E205720HP | others - case |
| 82801210 | others - case ring |
| 04L15DGH | others - hour hand |
| 04V23DGM | others - minute hand |
| 1CE025LABDG | others - hour hand |
| 2EE037LCBDG | others - minute hand |
Caliber 2E20
