Vintage 29mm 1970 Accutron Gold Sunburst Tuning Fork Wristwatch Movement 214 USAProduct Description Item: Wristwatch Movement Brand: Accutron Model: Sunburst Year: 1970 Movement: Tuning Fork Caliber: 214 Country: USA Gender: Unisex Product Measurements Diameter: 29mm Product Condition The Accutron Caliber 214 is the original tuning fork movement introduced by Bulova in 1960. It was the world's first fully electronic watch, replacing the traditional balance wheel with a 360 Hz tuning fork for unprecedented accuracy of about one