Junghans Mega 1000 User manual

Collection
Avantgarde

3736
ENGLISH ”By the work one knows the workman.”
Jean de la Fontaine
We would like to congratulate you on your purchase of a chronome-
ter from the ”Avantgarde“ collection.
Faithful to their name ”Advanced Guard“, the Junghans’ Avantgarde
watch-models combine the most modern clockwork technologies
with a superb design. With modernity in mind, they appeal to all
those who would like to portray the highest possible precision and
comfort as an expression of their modern and forward thinking atti-
tude to life.
We hope you will get a great pleasure from this very special time-
keeping instrument.
Yours,
Junghans Uhren GmbH

3938
Content Page
1. Radio technology 40
2. Operational requirements 43
3. Automatic time synchronisation 44
4. Functions 45
4.1. Time display modes 45
4.2. Additional functions 47
5. Description of the functions and their operation 48
5.1. Stopwatch with split function (chrono) 48
5.2. Countdown timer 50
5.3. Alarm 51
6. Reception indicator 53
7. Manuel Synchronisation (Calling the transmitter) 53
8. Time zone adjustment/ 12-24 hour display / home time 55
8.1. Time zone adjustment 55
8.2. 12-24 hour display 57
8.3. Home time 58
9. Language selection (weekday indicator and date display) 59
9.1. Language selection 59
9.2. Date display 60
10. 2. Time 61
11. Restart / Starting up procedure 62
12. Manual start 63
12. Illumination 65
14. Button lock 66
15. Adjusting the contrast of the digital display 67
16. Adjusting the wristband 67
17. Water resistance 68
18. General information 68
19. Technical information 69
Operating instructions Mega 1000
Important notice concerning the display
Please take note that during the time synchronisation, the display will auto-
matically switch itself off and remain switched off for the duration of the
procedure. When carrying out a restart following a battery change, the indica-
tor for the transmitter currently being searched for will flash and the signal
controlled second indicator will be displayed. Precise information can be found
in chapters 3, 7, and 11.

4140
1. Radio technology
Cutting edge chronography.
5,000 years have now passed since the advent of chronography. Starting with
sundials and water clocks, advancing to mechanical clocks in the 13th century
and then followed by quartz watches, chronography has now culminated in
the radio-controlled watches by Junghans.
Radio-controlled watches by Junghans are always accurate and never require
adjustment if reception conditions are adequate. Junghans radio-controlled
watches are perfectly accurate because they are linked to the most accurate
clocks in the world by radio signals.
In Europe, this is the caesium clock of the German National Metrology
Institute (Physikalisch-Technischen Bundesanstalt, PTB) in Braunschweig.
In North America, this is the caesium clock of the U.S. Department of
Commerce, the National Institute of Standards and Technology (NIST) in
Boulder, Colorado.
In Japan this is the caesium clock of the National Institute for Information
and Communication Technology, an association of the government office.
Your Junghans Mega 1000 radio-controlled watch is able to automatically
receive the radio signals of the following time signal transmitter stations:
– DCF77 in Mainflingen (24km south-east of Frankfurt am Main) for Europe,
– WWVB in Fort Collins, Colorado (USA) for North America
– JJY40 on Mount Ohtakadoya (near Tokyo in north-east Japan) for Japan
– JJY60 on Mount Hagane (in south-west Japan) for Japan,
the East coast of China (Shanghai),
for South Korea and parts of Taiwan.

4342
This means that within range of one of these 4 transmitter stations your
Junghans Mega 1000 will display the exact time when reception conditions
are adequate.
Junghans radio-controlled wristwatches automatically synchronise themsel-
ves every day with the DCF77,WWVB, JJY40 and JJY60 time signal transmitters.
If your Junghans Mega 1000 radio-controlled watch is unable to receive a sig-
nal due to interference (e.g. thunder storms, electronic devices, lighting dim-
mer switches) it will automatically attempt to receive a signal the following
day at the same time.
The time can also be synchronised manually by calling a transmitter e.g. from
a place with better reception.
The most recent time information received is stored in an internal time memo-
ry. This time is then kept by a high-precision 32 kHz quartz oscillator until the
next time your watch is synchronised.
The radio-controlled time synchronisation function of your Junghans Mega
1000 radio-controlled watch not only ensures total time accuracy, but also
automatically switches (at night) from winter time to daylight saving time
(Europe and North America) and vice-versa when reception is available.
The Junghans Mega 1000 time zone adjustment function enables you to set
your watch to the relevant local time when travelling in countries in other time
zones.
2. Operational requirements
Make sure that the battery has enough power to ensure the continuous
operation of your watch.
The watch regularly checks whether sufficient battery power is available. If the
battery is low on power (empty battery or low ambient temperature affecting
battery performance) then a battery indicator appears in the LCD display. If the
battery does not recover (e.g. due to higher ambient temperature) you should
bring the watch to your specialist retailer or send it to the Junghans Service
Center within a few weeks to have the battery replaced.
Battery type: CR 1620 – average service life: approx. 2 years
Please ensure that the battery is disposed of appropriately and in accordance
with the legal regulations.
T1T4
T5
T2T3