WWVB-RADIO CONTROLLED WATCH
The NIST (National Institute of Standards and Technology-Time and Frequency Division) WWVB radio station is located in Ft. Collins, Colorado, and transmits the exact time signal continuously at 60 kHz. The signal can be received up to 2,000 miles away through the internal antenna in the E Howard & Co. watch. However, due to the
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nature of the Earth's Ionosphere, reception is very limited during daylight hours.
The Watch will search for a signal every night when reception is best. The WWVB radio station derives its signal from the NIST Atomic clock in Ft. Collins, Colorado. A team of atomic physicists is continually measuring every second, of every day, to an accuracy of ten billionths of a second per day. These physicists have created an international standard, measuring a second as 9,192,631,770 vibrations of a Cesium-133 atom in a vacuum. This watch is regulated by the WWVB transmitter.
For more information on WWVB and the NIST Atomic clock please visit their website at http://www.boulder.nist.gov/timefreq/stations/wwvb.htm
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SET-UP GUIDE, FEATURES AND OPERATION
DISPLAY OF HOURS/MINUTES
Analogue display
Recessed
Push-piece
button |
button |
Digital LCD
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Normally upon purchase, the watch will already display the correct time and date, and it will not be necessary to use the manual settings.
Hours and Minutes are shown using the analog display.
Date and Seconds are shown in the digital LCD.
DIGITAL DISPLAY OF DATE, SECONDS, AND WWVB RECEPTION CONTROL
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Press and release the PUSH-PIECE to toggle between the displays:
•Month and Day
The Date appears as Month and day (ex: 12.30)
•Or Seconds and WWVB Signal Reception Icon
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Manual Setting
TIME & DATE
If the wristwatch is not able to receive the WWVB signal, you may set the time manually.
IMPORTANT:
If the WWVB signal is received correctly, the symbol (tower) is shown, and setting the time and date manually is not possible.
1.To change the setting mode for time and date, press the PUSHPIECE and the RECESSED BUTTON simultaneously for about 4 seconds. The seconds will flash in the LCD display.
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