The Seiko 2E20-6861 is a watch model based on the 2E20 movement.
Parts List
| RE0A75J20A | crystal |
| RE0A75J2 | crystal |
| 30M51NN1 | crown - crown |
| 0H1500B01 | case back gasket - case back gasket |
| 0H1500B0 | case back gasket |
| Z5451L | band |
| Z5451L-LKG | band - link |
| Z5451L-BK4G | clasp - clasp |
| DA007BA11 | others - crown and stem gasket |
| 0351205 | others - winding stem |
| 04L05DGH | others - hour hand |
| 0351207 | others - winding stem |
| 82843310 | others - case ring |
| 2E202361XS14 | others - dial |
| 2E2062 | others - machine code |
| 2E206861 | others - case back |
| 2E20686129 | others - case |
| T060BS | others - push pin |
| 04V05DGM | others - minute hand |
Caliber 2E20
