The Seiko 1E20-HAF0 is a watch model based on the 1E20 movement.
Parts List
| 0F100BA1S | case back gasket - case back gasket |
| WCY8AW | band - leather band |
| WCY9AW | band - leather band |
| A100BS | others - push pin (for mb) |
| DZ0040B01 | others - crown and stem gasket |
Caliber 1E20
