Sharper Image SN005 User Manual
Global
Atomic Watch
SN005 Instructions
Read and save these instructions.
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Table of Contents
What is Atomic Radio Control? ..................................... 5
Buttons ......................................................................... 8
Replacing Battery .......................................................... 9
Auto Synchronization .................................................. 10
Reading Other Data or Setting the Watch.................... 16
Manual Setting ............................................................ 18
What is Atomic Radio Control?
Atomic radio control watches are the most precise time
keeping devices in the world. They keep time to the accuracy of more than 1 second in one million years. Until
recently, the atomic watches were only found in laboratories and special institutions and were very large and
expensive. When various governments began to broadcast
atomic, electronically encoded signals with their own national time, the accuracy of the atomic radio control watch
became available to the general public. Recent technology
enabled this process to be miniaturized and to be offered
at a reasonable cost.
The Global Atomic Watch takes it one step further. Until the
development of this type of watch, atomic watches were
able to receive and decode signals from only one transmitter.
5
What is Atomic Radio Control?
Watches made to receive signals in Europe did not work
in the USA or vice-versa. A different watch was needed
for each time signal. This watch changes it all. It is able
to receive signals transmitted by the various government
locations in Figure 1:
6
Figure 1
What is Atomic Radio Control?
7
• Fort Collins, Colorado, which covers all 4 zones in the
continental USA.
• Anthorn, UK, that covers all of UK.
• Near Frankfurt, Germany, that covers most of Western
and some of Central Europe.
• Kyushu Island, Japan, that covers most parts of Japan
and parts of Korea.
The radio receiver in the watch picks up the transmitted
signal and it is decoded with a split-second precision, to
synchronize to the accurate time. At the same time, the
radio signal automatically sets the calendar function and
for countries adopting daylight saving and standard time,
it adjusts automatically.
Buttons
8
Set/Light
Up
Mode
Down
Figure 2
Replacing the Battery
The watch runs on one CR2032 battery.
1. Open the back cover of the watch. (See Figure 3a.)
2. Remove the metal plate of + polarities. (See Figure 3b.)
3. Replace with CR2032 button cell, with positive pole
(+) facing out. Ensure that it is retained securely in
position by the metal plate.
4. Replace the back cover.
9
Figure 3a
Figure 3b
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