Artist: Joseph Henry Hamilton Jr.
Date: 1961
Size: 4 x 3 cm
Museum: The Museum of Arts and Crafts (Zagreb, Croatia)
Technique: Glass
Electromechanical watch with battery and balance as oscillator. Caliber Hamilton 505. The watch is powered by battery, and no longer spring driven. However, the frequency of the oscillator remains the same as that function is still performed by the balance. Hamilton electric are first watches of that new type. Their production started in January 1957. They had caliber 500, while caliber 505 was used since 1961. The Pacer was in production from 1957 till 1969 and was the most popular model of Hamilton
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