The Seiko 2E20-6540 is a watch model based on the 2E20 movement.
Parts List
| BA5N07JM | crystal |
| BA5N07JM01 | crystal |
| 32N23NN1 | crown |
| 32N23NA1 | crown |
| 0G1500B01 | case back gasket - case back gasket |
| 0G1500B0 | case back gasket |
| DA007BA1 | case back gasket |
| B5570S | band |
| B5570S-BK3S | clasp - clasp |
| 2EG040LABDG | others - minute hand |
| DA007BA11 | others - crown and stem gasket |
| 04L05DGH | others - hour hand |
| B5570S-EP2 | others - endpiece |
| 2E201940XS14 | others - dial |
| 2E206540 | others - case back |
| 2E20654029 | others - case |
| 82830370 | others - case ring |
| 04V05DGM | others - minute hand |
| 1CG027LABDG | others - hour hand |
Caliber 2E20
