Casio MA1007-EA Manuale Utente

4

 The watch’s built-in full automatic calendar makes allowances for different month 

 

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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.

World Time 
All World Time Mode times are calculated from the current Home City time in the 

Timekeeping Mode using UTC time differential values.

 The seconds count of the World Time is synchronized with the seconds count of the 

 

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Timekeeping Mode.

 The UTC differential is a value that indicates the time difference between a 

 

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reference point in Greenwich, England and the time zone where a city is located.

 The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the 

 

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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 electro-luminescent panel that provides illumination loses power after very long 

 

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use.

 Illumination may be hard to see when viewed under direct sunlight.

 

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 The watch may emit an audible sound whenever the display is illuminated. This 

 

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is due to vibration of the EL panel used for illumination, and does not indicate 

malfunction.

 Illumination will turn off automatically if an alarm starts to sound while Flash Alert is 

 

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turned off. When Flash Alert is turned on, illumination will flash with the alarm.

 Frequent use of illumination runs down the battery.

 

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 Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light 

 

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switch to operate when it is not needed, which shortens battery life. If you want to 

wear the watch on the inside of your wrist, turn off the auto light switch feature.

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

 

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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 

 

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(see “To specify the illumination duration” (page E-33)), 

even if you keep the watch pointed towards your face.

 Static electricity or magnetic force can interfere with proper 

 

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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 

 

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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 

 

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back and forth. This sound is caused by mechanical operation of the auto light 

switch, and does not indicate a problem with the watch.

Accuracy at normal temperature: ±15 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week 

Time format: 12-hour and 24-hour

Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099

Other:  Home Time zone (selectable from among 29 zones); Daylight Saving Time 

(summer time)/Standard Time

World Time: 48 cities (29 time zones)

Other: Daylight Saving Time/Standard Time

Alarms:  3 multi-function* alarms (two one-time alarms; one snooze alarm);  

Hourly Time Signal

Measuring unit: 1 second

Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

Other: Auto-repeat timing; Progress beeper

Measuring unit: 1/100 second

Measuring capacity: 23:59’59.99”

Measuring modes: Elapsed time, split time, two finishes

Illumination: EL (electro-luminescent panel); Selectable illumination duration;  

Auto Light Switch

Other: Button operation tone on/off, Flash alert

Battery: One lithium battery (Type: CR2025)

Approximately 7 years on type CR2025 (10 seconds of alarm operation (with flash 

alert) per day, one countdown timer operation (with progress beeper) per week, one 

stopwatch operation (with auto start) per week, 1.5 seconds of illumination per day)

PPG

Pago Pago

–11

HNL

Honolulu

–10

ANC

Anchorage

–9

YVR

Vancouver

–8

SFO

San Francisco

LAX

Los Angeles

DEN

Denver

–7

MEX

Mexico City

–6

CHI

Chicago

MIA

Miami

–5

NYC

New York

CCS*

Caracas 

–4

YYT

St. Johns

–3.5

RIO

Rio De Janeiro

–3

RAI

Praia

–1

LIS

Lisbon

0

LON

London

BCN

Barcelona

+1

PAR

Paris

MIL

Milan

ROM

Rome

BER

Berlin

ATH

Athens

+2

JNB

Johannesburg

IST

Istanbul

CAI

Cairo

JRS

Jerusalem

MOW 

Moscow

+3

JED

Jeddah

THR

Tehran

+3.5

DXB

Dubai

+4

KBL

Kabul

+4.5

KHI

Karachi

+5

MLE

Male

DEL

Delhi

+5.5

DAC

Dhaka

+6

RGN

Yangon

+6.5

BKK

Bangkok

+7

SIN

Singapore

+8

HKG

Hong Kong

BJS

Beijing

SEL

Seoul

+9

TYO

Tokyo

ADL

Adelaide

+9.5

GUM

Guam

+10

SYD

Sydney

NOU

Noumea

+11

WLG

Wellington

+12

 

• Based on data as of December 2009.

 

* In December 2007, Venezuela 

changed its offset from –4 to –4.5. 

Note, however, that this watch displays 

an offset of –4 (the old offset) for the 

CCS (Caracas, Venezuela) city code.