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Citizen Watch UK on Twitter: "With a margin of error of just one second in 100,000 years, Citizen Radio-Controlled watches receive radio signals from an atomic clock to set the time correctly. #
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Easy Instructions] How to set Time and Date Citizen AT Radio Controlled E650 (for all time zones) - YouTube
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How to Set Time on Citizen Eco-Drive U680 Radio Controlled Perpetual Calendar | Citizen Time Setting - YouTube
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