The Seiko 1E20-HAD0 is a watch model based on the 1E20 movement.
Parts List
| K00H02SN02 | crystal - crystal (sapphire) |
| 6M3512SNW1 | crown - crown |
| 0F110BA1S | case back gasket - case back gasket |
| W511AB | band - metal band |
| W512AB | band - metal band |
| 1CA025A3BJS | others - hour hand |
| 1E20HAD0 | others - case back |
| 1E20HAD001H | others - case |
| 8NWHA440 | others - case ring |
| DB004BAD1 | others - crown and stem gasket |
| 0351931 | others - winding stem |
| 2EA035A3BNS | others - minute hand |
Caliber 1E20
