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Idiomas disponibles
Contents
1.
1.1
2.
3.
3.1
3.2
4.
4.1
4.2.1 Language selection (day of the week display)
5.
Restart / starting up procedure
5.1
6.
7.
8.
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1. Radio-controlled technology - state-of -the-art time measurementz
5,000 years have passed since timekeeping began, first with sun dials,
followed by water clocks, the mechanical clocks of the 13th century, quartz
watches and now culminating in radio-controlled watches.
With good reception the watch never goes wrong or needs to be set. The
Junghans radio-controlled watch is absolutely precise, as it is linked by radio
frequency to the time control system of the most accurate clocks in the
world.
For Europe this is the Caesium Time Base at the Physikalisch-Technische
Bundesanstalt in Braunschweig (PTB, National Metrology Institute).
For North America it is the U.S. Commerce Department's Caesium Time Base
at the National Institute of Standards and Technology (NIST) in Boulder,
Colorado.
For Japan it is the National Institute of Information and Communications
Technology (NICT) at the Ministry of Internal Affairs and Communications in
Tokyo.
All these clocks are so accurate, that they are expected to deviate by no more
than 1 second in a million years.
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