Operation Guide 2910
Timekeeping
" Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
" The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
" The year can be set in the range of 2000 to 2099.
" The watchOs 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 watchOs battery replaced or when battery power drops to
Level 4.
" The current time for all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Greenwich Mean Time (GMT) differential for each
city, based on your Home City 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 EarthOs rotation.
The reference point for UTC is Greenwich, England.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all other modes.
" With the 12-hour format, the PM indicator (P) appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
" With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
Illumination Precautions
" The electro-luminescent panel that provides illumination loses power after very long
use.
" Illumination may be hard to see when viewed under direct sunlight.
" The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
" Illumination automatically turns off whenever an alarm sounds.
" Frequent use of illumination runs down the battery.
Auto light switch precautions
" The auto light switch is turned off automatically whenever battery power is at Level
3.
" 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 illumination of the
display. To avoid running down the battery, turn off the auto light switch whenever
engaging in activities that might cause frequent illumination.
" Note that wearing the watch under your sleeve while the auto light switch is turned
on can cause frequent illumination of the display and can run down the battery.
More than 15 degrees" Illumination may not turn on if the face of the watch is
too highmore than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
" Illumination turns off after the preset illumination
duration (see OTo set the time and date�), 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 you 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.
City Code Table
CityGMT
CodeCityDifferentialOther major cities in same time zone
� � ��11.0Pago Pago
HNLHonolulu�10.0Papeete
ANCAnchorage�09.0Nome
San Francisco, Las Vegas, Vancouver,
LAXLos Angeles�08.0Seattle/Tacoma, Dawson City
DENDenver�07.0El Paso, Edmonton
Houston, Dallas/Fort Worth,
CHIChicago�06.0New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
NYCNew York�05.0Panama City, Havana, Lima, Bogota
CCSCaracas�04.0La Paz, Santiago, Port Of Spain
RIORio De Janeiro�03.0Sao Paulo, Buenos Aires, Brasilia, Montevideo
� � ��02.0
� � ��01.0Praia
GMTDublin, Lisbon, Casablanca, Dakar, Abidjan
LONLondon+00.0
PARParisMilan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
BERBerlin+01.0Frankfurt, Vienna, Stockholm
ATHAthensHelsinki, Istanbul, Beirut, Damascus,
CAICairo+02.0Cape Town
JRSJerusalem
JEDJeddah+03.0Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
THRTehran+03.5Shiraz
DXBDubai+04.0Abu Dhabi, Muscat
KBLKabul+04.5
KHIKarachi+05.0Male
DELDelhi+05.5Mumbai, Kolkata
DACDhaka+06.0Colombo
RGNYangon+06.5
BKKBangkok+07.0Jakarta, Phnom Penh, Hanoi, Vientiane
HKGHong Kong+08.0Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth,Ulaanbaatar
SELSeoulPyongyang
TYOTokyo+09.0
ADLAdelaide+09.5Darwin
SYDSydney+10.0Melbourne, Guam, Rabaul
NOUNoumea+11.0Port Vila
WLGWellington+12.0Christchurch, Nadi, Nauru Island
" Based on data as of June 2004.
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ACEC
