The Seiko 1E20-3220 is a watch model based on the 1E20 movement.
Parts List
| RE6A23JN02 | crystal - crystal |
| 6M30Y9SNGA | crown - crown |
| 6M30Y9SNS0 | crown - crown |
| 0F120BA1S | case back gasket - case back gasket |
| W379AB | band - band |
| W380BB | band - band |
| WT74AW | band - band |
| W312AZ | band - band |
| W313BZ | band - band |
| W314AZ | band - metal band |
| 1CA025A7BNG | others - hour hand |
| 1CA025A7BNS | others - hour hand |
| 1CH022A1BNS | others - hour hand (upper) |
| 2CA037A5BNG | others - minute hand |
| 2CA037A5BNS | others - minute hand |
| 2EH037A1BNS | others - minute hand |
| 1CA030F6BNG | others - hour hand |
| 2CA040F0BNG | others - minute hand |
| A100BS | others - push pin (for mb) |
| 1E205450XS13 | others - dial |
| 1E205E50XG13 | others - dial |
| 1E205E50XS13 | others - dial |
| 1E205E50XS23 | others - dial |
| 1E205E90XS13 | others - dial |
| 1E205E90XS14 | others - dial |
| 1E207 | others - machine code |
| A100AS | others - push pin |
| 1E2032208W | others - case |
| 82845310 | others - case ring |
| 1E203220 | others - case back |
| 1E2032208XA | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 0351931 | others - winding stem |
Caliber 1E20
