The Seiko 2E20-5409 is a watch model based on the 2E20 movement.
Parts List
| ESXN81JN01 | crystal |
| ESXN81JN | crystal |
| 32N23NA1 | crown |
| 0F130NA1 | case back gasket |
| 0F130NA11 | case back gasket |
| DA007BA1 | case back gasket |
| B5291G | band - metal band |
| B5291G-BK3G | clasp - clasp |
| B5291G-EP2 | others - endpiece |
| 2E200590XG15 | others - dial |
| 2E2054092H | others - case |
| 82723150 | others - case ring |
| DA007BA11 | others - crown and stem gasket |
| 03V03DGM | others - minute hand |
| 03L03DGH | others - hour hand |
Caliber 2E20
