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I have a new Citizen watch like in the picture. Years ago a railroad watch had to keep time within a minute a day. Then the Bulova Accutron came along and it could keep time within a minute a month. The the standard quartz watch is was good for fifteen seconds a month. Now some quartz watches are for a second a year with some that keep tack of GPS satellites that are good for one second every 10,000 years.
Lynwood
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