The Seiko 1E20-6310 is a watch model based on the 1E20 movement.
Parts List
| AL0N58GN00 | crystal |
| 30M68NA1 | crown - crown |
| 0H1400B01 | case back gasket - case back gasket |
| TT40A | band - metal band |
| TT41A | band - metal band |
| 82730280 | others - case ring |
| 1E202220XG14 | others - dial |
| 1E202220XS14 | others - dial |
| 1E20631025 | others - case |
| 1E2063102N | others - case |
| 1E208 | others - machine code |
| 0351931 | others - winding stem |
| 04V10DGM | others - minute hand |
| 04V10NGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
