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Atomic Watches: FAQ and
should I consider an atomic (radio controlled) watch/clock?
should I consider an atomic (radio controlled) watch/clock?
All watches receive a radio signal from the Caesium atomic, the world's most precise clock, accurate to 1 second in 1 million years. The signal is encoded so that it can be transmitted in long wave radio form. The signal originates from the WWVB transmitter in Fort Collins, Colorado and is transmitted on a frequency of 60 kHz.
The atomic watches contain an antenna and internal program to receive and encode the radio signal. It is then decoded to display the precise time. They maintain total accuracy by automatic nightly updates with the radio signal. Junghans watches and clocks may be manually updated by the user.
It will only work as a regular quartz watch. The transmitter frequencies between Europe and North America are different.
The transmitter range is 1864 miles (radius) from Fort Collins, Colorado. Your watch will work in most parts of the USA and Canada. The exceptions are Hawaii, Alaska, part of the Maritimes and all of Newfoundland. In Newfoundland, the watch cannot be used at all. At the present time, there is no way to adjust the time zone to half hours. For actual signal coverage in North America visit: www.boulder.nist.gov/timefreq/stations/wwvbcoverage.htm
Yes, you can use your watch, however not as an atomic (radio controlled) watch - but as a regular quartz watch. You simply have to adjust your watch to the appropriate time zone. (Push button at 10 o'clock to select time zone) Make sure to select the appropriate "am" or "pm" time to assure date change at midnight.
Press button located at 2 o'clock (ceramic watch only: press recessed button with a pointed object.) You should see a letter P, M, C, E followed by a number. The letters stand for: P=Pacific, M=Mountain, C=Central, E=Eastern Time Zone. The number shows the actual hour the watch displays at the moment. If your watch displays a number without any of the letters, your watch is not set to any of the North American time zones.
Press the recessed button at 10 o'clock until you see the letter appear for your time zone. You might have to press this button repeatedly up to 23 times to arrive at your time zone.
Simply keep on pressing the button at 10 o'clock until you get the Pacific time zone (P). Now choose your time zone (if other then "P") by pressing button repeatedly.
No, your watch adjusts itself automatically - even in a leap year (February 29th) the watch will set itself properly.
No. Your watch will adjust itself overnight - provided it can receive the synchronization signal.
No. Your watch is not equipped with a GPS system (global positioning system). You will have to adjust the time zone yourself.
Make sure that your watch is set to your time zone (see above). Your watch can only receive the radio signal if it is set to one of the 4 North American time zones (P, M, C, or E).
Your watch is adjusted to run on average within +/- 0.15 seconds in a 24 hour period as a regular quartz watch. Most likely, your watch did not receive a signal for some time and was not synchronized with the atomic cesium clock in Colorado.
Yes. Simply press the button at 2 o'clock and hold for 10 sec. After approx. 3 seconds, your hands will start to move to the 12 o'clock position. A double 00 appears in the LCD display. After 7-8 seconds, a single digit appears (0-9). Within 9 minutes the watch resumes normal operation. To return to the saved internal time, press the 2 o'clock button.
If the displayed number is "0" (zero) your watch received the signal within the last 24 hours and your watch is synchronized. A number of 1, 2, 3, etc. means that your watch did not receive the signal for 1, 2, 3 days. The number 9 means that your watch was not synchronized for at least 9 days (perhaps more).
Your watch is programmed to receive the signal during the night (starting at 11 pm) on the hour for 9 minutes. If the watch does not receive the signal during the first attempt, it will try again (for 9 minutes) at 12 o'clock and so on during the whole night. Once the signal is received, the receiver shuts down until the next night in order to save battery power.
Yes. Simply press the button at 2 o'clock and hold for 3 seconds. The hands will go to the 12 o'clock position and stay there for 9 minutes. The receiver is now manually activated. If the signal is not received within 9 minutes, the watch will go back to the time which was previously displayed.
There is a lot of "electronic pollution" especially during working hours in urban areas. Many factors can affect the reception of the signal such as cell phones, computers, faxes, satellite dishes, etc. The watch is subject to such interferences similar to a cell phone. During the night, the "electronic pollution" is greatly reduced.
Make sure that the watch does no rest during the night beside or on top of an electronic device which might interfere with the reception.
Make sure you have a watch made for the North American market. Furthermore, make sure you are within the range of the transmitter. Also check if you are living near power lines, they can interfere with reception.
Your safe does not just keep burglars out but also the time signal. The metal casing acts as a shield and prevents the signal from reaching the watch.
Most likely the watches did not receive the synchronization signal for some time. Most shopping malls have heavy duty steel roofs which shield your watches from the signal. Also note, that the watches can interfere with each other if they are kept very close together in you showcase or overnight in a safe.
Perhaps the memory of the watch is mixed up due to any number of factors. You have to wipe the memory clean (hardware reset). Press and hold both buttons (at 2 and 10 o'clock) simultaneously for at least 4 seconds. The hands will go back to 12 o'clock. The watch memory has now been cleared and the watch is waiting to receive the signal. This can easily take overnight - so, please be patient. Once your watch receives the signal, it will be on to the proper time and date. However, the watch will set itself to the Pacific time zone ("P") by default. If necessary adjust to your time zone.
You need a new battery.
Have a qualified watchmaker replace it or send it to the
national service center:
Replacing the battery is the equivalent of a hardware reset. You simply have to wait (probably overnight) until the watch receives the synchronization signal.
No, the atomic Junghans watches are equipped with an exclusive world wide patented system which remembers the 12 o'clock position of the watch. See the technical information for further details.
Depending on the model, Junghans watches are water resistant to 3 bar (30M/98ft.), 5 bar (50M/164ft.) and 10 bar (100M/328ft.)
For water resistance details
and suitable use please click our
Not all Junghans watches are
available in the United States, though all Junghans watches available in
the US can be found at Atomic Watches USA.
Please contact Providence Watch Hospital for all Junghans clock and watch repair and warrantee questions:
Providence Watch Hospital Inc.
Please contact Junghans Germany at firstname.lastname@example.org