The Seiko 2E20-5010 is a watch model based on the 2E20 movement.
Parts List
| SADN71JN00 | crystal |
| SADN71JN | crystal |
| 30N63NA1 | crown - crown |
| 30N63NS1 | crown |
| 0G1700B01 | case back gasket |
| 0G1700B0 | case back gasket |
| DZ0040B0 | case back gasket |
| Q5007G | band - metal band |
| Q5007S | band - metal band |
| Q5007S-BK3S | clasp - clasp |
| Q5007G-BK3G | clasp - clasp |
| 1CA022A3BNS | others - hour hand |
| 2E200030XS13 | others - dial |
| 2E200030XS24 | others - dial |
| 2E20501025 | others - case |
| 2E2050102E | others - case |
| 82706990 | others - case ring |
| T060AS | others - push pin |
| 2EA035A3BDG | others - minute hand |
| 2EA035A3BDS | others - minute hand |
| 1CA022A3BNG | others - hour hand |
| 04V03DSM | others - minute hand |
| 04V03DGM | others - minute hand |
Caliber 2E20
