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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 availa-
ble. If the battery is low on power (empty battery or low ambient tempe-
rature 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 accor-
dance with the legal regulations.
This means that within range of one of these 4 transmitter stations your
Junghans Mega 1000 will display the exact time when reception condi-
tions are adequate.
Junghans radio-controlled wristwatches automatically synchronise them-
selves 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 signal due to interference (e.g. thunder storms,
electronic devices, lighting dimmer 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
memory. This time is then kept by a high-precision 32 kHz quartz oscil-
lator 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.
