The Seiko 1E20-0AT0 is a watch model based on the 1E20 movement.
Parts List
| 130A08SB0B | crystal - crystal (sapphire) |
| 6M35Z4KTGA | crown - crown (3h) |
| 6M35Z6KTGA | crown - crown (3h) |
| 0F120BA1S | case back gasket - case back gasket |
| DG27BW | band - leather band |
| DG28BW | band - leather band |
| 2EA040A1BDP | others - minute hand |
| 2EA052A3BDN | others - minute hand |
| 1CA030AZBNP | others - hour hand |
| 1CA035A1BNN | others - hour hand |
| 1E200AT001A | others - case |
| 1E200AT002A | others - case |
| 82845780 | others - case ring |
| 0351931 | others - winding stem |
| 1E200AS0XS14 | others - dial |
| 1E200AT0XS15 | others - dial |
| 1E207 | others - machine code |
| 87022040 | others - back plate |
| T080BS | others - push pin |
| AC006BAD1 | others - crown and stem gasket |
Caliber 1E20
