Junghans Funkwerk J612.41, User Manual

Page: 4 / 104

25 24
1. Radio technology – The most up-to-date way to keep time
5,000 years have passed since timekeeping began with sundials. In the
interim there have been water clocks, the mechanical clocks of the 13th
century and quartz watches. Now we have the radio-controlled watch.
This is a watch that, with good reception, will never go wrong and never need
setting. The Junghans radio-controlled watch is absolutely precise, as it is lin-
ked via wireless technology to the timing control of the most accurate clock
in the world, namely the Caesium Time Base at the Physikalisch-Technischen
Bundesanstalt in Braunschweig (Germany’s national institute of natural and
engineering sciences).
Frankfurt
Mainflingen
1500 km
Contents Page
1. Radio technology
25
2. Functions
27
3. Automatic time synchronisation 28
4. Manual transmitter calls 30
5. Setting the time zone
30
6. Changing battery / Reset
32
7. Manual start 33
8. Readiness for use 35
9. General information
36
10. Declaration of conformity
36
11. Technical information
37
12. Impermeability 38