The Seiko 2E20-5739 is a watch model based on the 2E20 movement.
Parts List
| ET1N23JN01 | crystal |
| ET1N23JN | crystal |
| 30NA9NA1 | crown |
| DA007BA1 | case back gasket |
| 0F130NA11 | case back gasket |
| 0F130NA1 | case back gasket |
| 0F125NA11 | case back gasket |
| Q5013G | band - metal band |
| Q5013G-LKG | band - link |
| Q5013G-BK4G | clasp - clasp |
| 04L07DHH | others - hour hand |
| 04V07DHM | others - minute hand |
| 1CA027A3BNG | others - hour hand |
| 2EA040A3BDG | others - minute hand |
| DA007BA11 | others - crown and stem gasket |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 81609439 | others - bracelet fixing pin |
| 2E200970XG14 | others - dial |
| 2E205730 | others - case back |
| 2E20573925 | others - case |
| 82802050 | others - case ring |
| Q5013G-EPG | others - endpiece |
Caliber 2E20
