The Seiko 2E20-5020 is a watch model based on the 2E20 movement.
Parts List
| RE8N99JN00 | crystal |
| 32N23NS1 | crown |
| 32N23NA1 | crown |
| 0H1450B01 | case back gasket - case back gasket |
| 0H1350B01 | case back gasket |
| B5145G | band - band |
| B5145G-BK3G | clasp - clasp |
| B5145G-EP2 | others - endpiece |
| 2E20502025 | others - case |
| 82707010 | others - case ring |
| 2E200040XG14 | others - dial |
| DA007BA11 | others - crown and stem gasket |
| 0351205 | others - winding stem |
| 2EA035A3BDG | others - minute hand |
| 04L03DGH | others - hour hand |
| 1CA022A3BNG | others - hour hand |
| 04V03DGM | others - minute hand |
Caliber 2E20
