The photographs below show some of my Hamilton Electronic examples....note the "Swiss Made" at the base of the dial; a sure sign that the movements are no longer made in Lancaster, PA, USA.

There are additional examples in the "Presentation Watches" link on the left hand side.

Hamilton Electronic; Stainless Steel and Yellow 10K Gold Plate; No back; crystal opening only; No back; ESA 9150; 1970

Hamilton Masterpiece Electronic; Yellow 10K Gold Filled; No back; crystal opening only; ESA 9154; 1972

Hamilton Masterpiece Electronic dedication

Hamilton Masterpiece Electronic; ESA 9154

Hamilton Electronic; Stainless Steel Case; Snap On Stainless Steel Back; ESA 9158; 1974ish

Hamilton Electronic; ESA 9158