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Shanghai Watch Factory Caliber A611

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Manufacturer Shanghai Watch Factory (上海)
Caliber Number A611, A-611, A611A
Jewels 17
Beats per hour 18,000 vph
Power Reserve 40 hours
Anti-Shock System None
Hand-Windable? Yes
Hacking Seconds? Yes
Functions Hours, minutes, central seconds
Country of Manufacture China
Known Models
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The Shanghai caliber A611 is a 17 jewels (17 zuan) manual wind mechanical movement. It is based on the Shanghai caliber A581. This caliber was produced from circa 1961 – 1967.

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