25
24
Contents
Page
1.
Radio-controlled technology
25
2.
Readiness for use
27
3.
Automatic time synchronisation
28
4.
Functions
29
5.
Manual time synchronisation / transmitter call
32
6.
Readiness for reception / transmitter call
33
7.
Setting the date
33
8.
Setting the time zone
34
9.
Restart / set-up
35
10.
General information
36
11.
Technical information
38
1. Radio-controlled technology – state-of -the-art time measurement
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.
Being in 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 standards of the most accurate clocks in the world.
For Germany this is the Caesium Time Base at the Physikalisch-Technische
Bundesanstalt in Braunschweig (PTB, National Metrology Institute).
Frankfurt
Mainflingen
1500 km
