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.
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).
Time calibration signal reception is not possible under the conditions described below.
While battery power is low
At Power Saving Level 2
While the crown is pulled out
As of July 2018, 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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