Casio 3145 Watch User Manual


 
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About Barometric and Temperature Measurement
Barometric pressure and temperature measurement readings are taken as
soon as you enter the Barometer/Thermometer Mode. After that, barometric
pressure and temperature readings are taken every five seconds.
During barometric pressure measurements, the watch may not be able to
update its timekeeping display contents normally. Correct timekeeping is
maintained internally, however.