Operation Guide 5038

Timekeeping

The year can be set in the range of 2000 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 or when battery power drops to Level 3.

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 Coordinated Universal Time (UTC) offset of each zone, based on your Home Time Zone time setting.

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.

Power Saving

Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving.

There actually are two sleep state levels: “second hand sleep” and “function sleep”.

Elapsed Time in Dark

Operation

60 to 70 minutes

Second hand only is stopped, all other functions are

(second hand sleep)

enabled.

6 or 7 days

All functions, including analog timekeeping, disabled

(function sleep)

Internal timekeeping maintained

 

 

Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.

The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when 6:00 AM arrives, however, it will remain in the sleep state.

To recover from the sleep state

Perform any one of the following operations.

Move the watch to a well-lit area.

Press any button.

Illumination Precautions

The illumination provided by the light may be hard to see when viewed under direct sunlight.

Illumination automatically turns off 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.

Note that wearing the watch under your sleeve while the auto light switch is turned on can cause frequent illumination of the face and can run down the battery.

Illumination may not turn on if the face of the watch is

More than 15 degrees

more than 15 degrees above or below parallel. Make

too high

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.

Time Zone Table

UTC Offset Value

Major Cities in Time Zone

Standard Time

DST/Summer Time

 

–11.0

DST –10.0

Pago Pago

–10.0

DST

–9.0

Honolulu, Papeete

–9.0

DST

–8.0

Anchorage, Nome

–8.0

DST

–7.0

Los Angeles, San Francisco, Las Vegas, Vancouver,

 

 

 

Seattle/Tacoma, Dawson City, Tijuana

–7.0

DST

–6.0

Denver, El Paso, Edmonton, Culiacan

–6.0

DST

–5.0

Chicago, Houston, Dallas/Fort Worth, New Orleans,

 

 

 

Mexico City, Winnipeg

–5.0

DST

–4.0

New York, Montreal, Detroit, Miami, Boston,

 

 

 

Panama City, Havana, Lima, Bogota

–4.0

DST

–3.0

La Paz, Santiago, Port of Spain

–3.0

DST

–2.0

Rio De Janeiro, Sao Paulo, Buenos Aires, Brasilia,

 

 

 

Montevideo

–2.0

DST

–1.0

 

–1.0

DST

+0.0

Praia

UT 0.0

UT 0.0

(UTC)

+0.0

DST

+1.0

London, Dublin, Lisbon, Casablanca, Dakar, Abidjan

+1.0

DST

+2.0

Paris, Milan, Rome, Madrid, Amsterdam, Algiers,

 

 

 

Hamburg, Frankfurt, Vienna, Stockholm, Berlin

+2.0

DST

+3.0

Cairo, Jerusalem, Athens, Helsinki, Istanbul, Beirut,

 

 

 

Damascus, Cape Town

+3.0

DST

+4.0

Jeddah, Kuwait, Riyadh, Aden, Addis Ababa, Nairobi,

 

 

 

Moscow

+3.5

DST

+4.5

Tehran, Shiraz

+4.0

DST

+5.0

Dubai, Abu Dhabi, Muscat

+4.5

DST

+5.5

Kabul

+5.0

DST

+6.0

Karachi, Male

+5.5

DST

+6.5

Delhi, Mumbai, Kolkata, Colombo

+6.0

DST

+7.0

Dhaka

+6.5

DST

+7.5

Yangon

+7.0

DST

+8.0

Bangkok, Jakarta, Phnom Penh, Hanoi, Vientiane

+8.0

DST

+9.0

Hong Kong, Singapore, Kuala Lumpur, Beijing, Taipei,

 

 

 

Manila, Perth, Ulaanbaatar

+9.0

DST +10.0

Tokyo, Seoul, Pyongyang

+9.5

DST

+10.5

Adelaide, Darwin

+10.0

DST +11.0

Sydney, Melbourne, Guam, Rabaul

+11.0

DST +12.0

Noumea, Port Vila

+12.0

DST

+13.0

Wellington, Christchurch, Nadi, Nauru Island

Based on data as of June 2007.

The rules governing global times (GMT differential and UTC offset) and summer time are determined by each individual country.

Tachymeter

Tachymeter bezel

0

 

 

60 TAC

E

 

 

 

 

HY

7

0

 

 

ME

 

 

3

 

 

 

 

T

 

7

 

 

R

 

 

 

6

 

 

 

 

0

80

 

 

 

 

 

 

 

 

0

 

 

 

 

0

 

 

 

 

2

 

1

 

 

 

 

0

 

150

 

 

0

120

 

 

 

 

 

 

 

If your watch has a tachymeter bezel, you can perform the steps below to calculate average speed after using the Stopwatch Mode to measure the amount of time that it takes to travel one kilometer (or one mile).

Never try to perform stopwatch operations while you

are driving an automobile, riding a bicycle, or operating any type of vehicle. Doing so is very dangerous and can result in accident.

1In the Stopwatch Mode, start an elapsed time operation at any point you like.

2Stop the elapsed time operation after you travel one kilometer or one mile.

3Your average speed will be the value that the second hand is pointing to on the tachymeter bezel.

The illustration shows an example where it took 50 seconds to travel one kilometer by car. The second hand is pointing at 70, which indicates that the average speed is 70 kilometers per hour.

See “Stopwatch” for details about using the stopwatch.

The tachymeter can be used only when you are traveling by car or some other means that can cover one kilometer or one mile within 60 seconds.

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