Cal. No. H29*
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Summer time
Automatic switching of summer time
This watch can switch summer time/standard time indication automatically when it receives standard time signals.
During a summer time period, the standard signals contain information that it is summer time now. The watch receives the information and switches the time indication to summer time automatically. When summer time ends, it works in the opposing way.
To switch summer time and the standard time automatically, make the summer time setting to “SMT ON”.
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Doing this operation during non-summer-time period makes time indication summer time temporarily, but it returns to that of the standard time after receiving the standard time signal.