Breguet installed four Classique clocks and one Reine de Naples clock.

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Gene Block, a professor of psychiatry and biobehavioral sciences at University of California, Los Angeles, and colleagues found that by middle age, the signal the master body clock in the brain sends out to other internal clocks to help resynchronize the different processes gets weaker.

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In an email to media outlets, he said game clocks are designed to recalibrate themselves and that the clock may have slowed simply because it had moved too quickly earlier.

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Since it gets its time from the GPS satellites, all of which contain on-board atomic clocks, if your watch stops you'll always have an accurate clock handy.

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It has been suggested that the smartphone could possibly render alarm clocks and point-and-shoot digital cameras obsolete, as people use the alarm clock functions on their phones more frequently and the cameras in these devices continue to improve.

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Skeleton clocks display the interior mechanisms of the timepiece, while mystery clocks, like the 1890 enamel and glass French timepiece showing a fetching young lady holding a pendulum clock, hide their mechanisms, thus presenting a mystery as to what makes them tick.

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