The Seiko 2E20-5090 is a watch model based on the 2E20 movement.
Parts List
| RE9N31HN00 | crystal |
| RE9N31HN | crystal |
| 30N63NA1 | crown - crown |
| 0H1450B01 | case back gasket - case back gasket |
| 0H1450B0 | case back gasket |
| DZ0040B0 | case back gasket |
| B5155G | band - metal band |
| B5155G-BK3G | clasp - clasp |
| B5155G-EP2 | others - endpiece |
| 2E200140XG14 | others - dial |
| 2E20509025 | others - case |
| 82708810 | others - case ring |
| 05V07DHM | others - minute hand |
| 05L13DHH | others - hour hand |
Caliber 2E20
