The Seiko 1E20-6180 is a watch model based on the 1E20 movement.
Parts List
| ESKN22JN01 | crystal |
| 30M98NA1 | crown |
| 0H1200N01 | case back gasket |
| TZ12A | band - other band |
| TZ13A | band - other band |
| 04V18DAH | others - hour hand |
| 0351931 | others - winding stem |
| 1E202040XG14 | others - dial |
| 1E202040XS14 | others - dial |
| 1E206180 | others - case back |
| 1E20618026 | others - case |
| 1E208 | others - machine code |
| 82812520 | others - case ring |
| 04V18DAM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1E20
