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E-129
Radio-controlled Atomic Timekeeping Precautions
• Strong electrostatic charge can result in the wrong time being set.
• The time calibration signal bounces off the ionosphere. Because of this,
such factors as changes in the reflectivity of the ionosphere, as well as
movement of the ionosphere to higher altitudes due to seasonal
atmospheric changes or the time of day may change the reception range of
the signal and make reception temporarily impossible.
• Even if the time calibration signal is received properly, certain conditions
can cause the time setting to be off by up to one second.
• The current time setting in accordance with the time calibration signal takes
priority over any time settings you make manually.
• The watch is designed to update the date and day of the week
automatically for the period January 1, 2001 to December 31, 2099. Setting
of the date by the time calibration signal cannot be performed starting from
January 1, 2100.
• This watch can receive signals that differentiate between leap years and
non-leap years.