The Seiko 5E20-8A5H is a watch model based on the 5E20 movement.
Parts List
| ESMN24SR03 | crystal |
| ESMN24SR | crystal |
| 30ML2NH1 | crown |
| 0G2780N01 | case back gasket - case back gasket |
| 0H2100N01 | case back gasket - case back gasket |
| 0G2780N0 | case back gasket |
| ZPB14G | band |
| 0351624 | others - winding stem |
| 81502469 | others - case back screw |
| 5E205 | others - machine code |
| 5E208A5H | others - case back |
| 5E208A5HBT | others - case |
| 5E208B20XN14 | others - dial |
| 82320843 | others - bezel |
| 82832380 | others - case ring |
| ZPB14G-EP3 | others - endpiece |
| 2BG120L2BDG | others - minute hand |
| 1BG085L0BDG | others - hour hand |
Caliber 5E20
