When the watch is unable to adjust its time in accordance with a calibration signal for some reason, average timekeeping accuracy is within ±15 seconds per month.
Time signal reception is not possible when any one of the conditions exists.
While battery power is low
During power saving
Note that an internal decoding process the watch performs after it receives a signal may cause the time setting to be slightly off (by less than one second).
As of January 2016, China does not observe summer time. If China starts to observe summer time in the future, the time displayed by the watch for China may not be correct.
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