Filter
Top Products
Operation Guide 4798
5
Timekeeping
• The year can be set in the range of 2001 to 2099.
• The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.
• The date will change automatically when the current time reaches midnight. The
date change at the end of the month may take more time than normal.
• The current time for all time zones in the Timekeeping Mode and Dual Time Mode is
calculated in accordance with the Greenwich Mean Time (GMT) differential of each
zone, based on your Home Time Zone time setting.
• GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC*) data.
* UTC is the world-wide scientific standard of timekeeping. It is based upon carefully
maintained atomic (cesium) clocks that keep time accurately to within
microseconds. Leap seconds are added or subtracted as necessary to keep UTC
in sync with the Earth’s rotation. The reference point for UTC is Greenwich,
England.
Illumination Precautions
• The illumination provided by the light may be hard to see when viewed under direct
sunlight.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination shortens the battery operating time.
Auto light switch precautions
• Wearing the watch on the inside of your wrist, movement of your arm, or vibration of
your arm can cause frequent activation of the auto light switch and illuminate the
face of the watch. To avoid running down the battery, turn off the auto light switch
whenever engaging in activities that might cause frequent illumination of the face.
• Illumination may not turn on if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
• Illumination turns off in about one second, even if you
keep the watch pointed towards your face.
• Static electricity or magnetic force can interfere with
proper operation of the auto light switch. If illumination
does not turn on, try moving the watch back to the
starting position (parallel with the ground) and then tilt it
back towards your face again. If this does not work, drop
your arm all the way down so it hangs at your side, and
then bring it back up again.
• Under certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
• You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
More than 15 degrees
too high
GMT Differential Value
Major Cities in Same Time Zone
Standard Time
DST/Summer Time
Time Zone Table
–11.0
–10.0
–9.0
–8.0
–7.0
–6.0
–5.0
–4.0
–3.0
–2.0
–1.0
DST –10.0
DST –9.0
DST –8.0
DST –7.0
DST –6.0
DST –5.0
DST –4.0
DST –3.0
DST –2.0
DST –1.0
DST +0.0
Pago Pago
Honolulu, Papeete
Anchorage, Nome
Los Angeles, San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City, Tijuana
Denver, El Paso, Edmonton, Culiacan
Chicago, Houston, Dallas/Fort Worth, New Orleans,
Mexico City, Winnipeg
New York, Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
Caracas, La Paz, Santiago, Port of Spain
Rio De Janeiro, Sao Paulo, Buenos Aires, Brasilia,
Montevideo
Praia
G 0.0
+0.0
+1.0
+2.0
+3.0
+3.5
+4.0
+4.5
+5.0
+5.5
+6.0
+6.5
+7.0
G 0.0
DST +1.0
DST +2.0
DST +3.0
DST +4.0
DST +4.5
DST +5.0
DST +5.5
DST +6.0
DST +6.5
DST +7.0
DST +7.5
DST +8.0
(GMT)
London, Dublin, Lisbon, Casablanca, Dakar, Abidjan
Paris, Milan, Rome, Madrid, Amsterdam, Algiers,
Hamburg, Frankfurt, Vienna, Stockholm, Berlin
Cairo, Jerusalem, Athens, Helsinki, Istanbul, Beirut,
Damascus, Cape Town
Jeddah, Kuwait, Riyadh, Aden, Addis Ababa, Nairobi,
Moscow
Tehran, Shiraz
Dubai, Abu Dhabi, Muscat
Kabul
Karachi, Male
Delhi, Mumbai, Kolkata, Colombo
Dhaka
Yangon
Bangkok, Jakarta, Phnom Penh, Hanoi, Vientiane
+8.0
+9.0
+9.5
+10.0
+11.0
+12.0
DST +9.0
DST +10.0
DST +10.5
DST +11.0
DST +12.0
DST +13.0
Hong Kong, Singapore, Kuala Lumpur, Beijing, Taipei,
Manila, Perth, Ulaanbaatar
Tokyo, Seoul, Pyongyang
Adelaide, Darwin
Sydney, Melbourne, Guam, Rabaul
Noumea, Port Vila
Wellington, Christchurch, Nadi, Nauru Island
• Based on data as of December 2006.