Hamilton Ventura

Hamilton Ventura, Richard Arbib for Hamilton
Museumsfoto, CC BY 3.0 de

The world's first battery-powered wristwatch, with a triangular, asymmetrical case.

The Ventura came out in 1957 and was an electric watch in which a battery drove the balance. Elvis Presley wore one in the film Blue Hawaii in 1961.

Materials: Gold and later steel; electric movement

Manufacture: Made in Lancaster, Pennsylvania.

The shield-shaped, asymmetrical case.

The dial with a wavy line.