Casio AQ190WD-1A Operation Manual Download Page 4

Operation Guide 5082

4

Reference

This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.

Auto Return Features

If you leave the watch with a flashing setting on the display for two or three minutes
without performing any operation, the watch will exit the setting mode automatically.

The watch will return to the Timekeeping Mode automatically if you do not perform
any operation for two or three minutes in the Alarm Mode.

High-Speed Movement

The 

D

 and 

B

 buttons are used to change setting in various setting modes. In most

cases, holding down these buttons will start high-speed movement.

Initial Screens

When you enter the Stopwatch Mode, World Time Mode or Alarm Mode, the data you
were viewing when you last exited the mode will appear first.

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 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 when battery has replaced.

The current time for all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Coordinated Universal Time (UTC) for each city,
based on your Home City time setting.

Illumination Precautions

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

Illumination turns off automatically whenever an alarm sounds.

Illumination turns off automatically depends on the current illumination duration
setting.

Frequent use of illumination runs down the battery.

Specifications

Accuracy at normal temperature:

 

±

 30 seconds a month

Digital 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 City code (can be assigned one of 48 city codes); Standard Time /

Daylight Saving Time (summer time)

Analog Timekeeping:

 Hour, minutes (hand moves every 20 seconds)

Stopwatch:

Measuring unit: 1/1000 second
Measuring capacity: 99:59'59.999"
Measuring modes: Elapsed time, Lap time, Split time
Other: Speed

Countdown Timer:

Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments)
Other: Auto-repeat timing

World Time:

 48 cities (29 time zones)

Other: Daylight Saving Time/Standard Time, Home City/World Time City Swapping

Alarms:

 Four daily alarms, one snooze alarm, Hourly Time Signal

Illumination:

 LED (light-emitting diode), Selectable illumination duration

Battery :

 One lithium battery (Type: CR1220)

Approximate Battery Life: 2 years on type CR1220
(ten seconds of alarm operation per day, one illumination operation (1.5 seconds)
per day)

Pago Pago

Honolulu

Anchorage

Vancouver

Los Angeles

Edmonton

Denver

Mexico City

Chicago

Miami

Toronto

New York

Santiago

Halifax

St. Johns

Rio De Janeiro

Praia

Lisbon

London

Madrid

Paris

Rome
Berlin

Stockholm

PPG
HNL
ANC
YVR

LAX

YEA
DEN

MEX

CHI
MIA

YTO
NYC
SCL
YHZ
YYT

RIO

RAI

UTC

LIS

LON

MAD

PAR

ROM

BER
STO

City

City

UTC Offset/

Code

GMT Differential

City Code Table

–11
–10

–9

–8

–7

–6

–5

–4

–3.5
–3
–1

0

+1

City

City

UTC Offset/

Code

GMT Differential

Athens

Cairo

Jerusalem

Moscow

Jeddah

Tehran

Dubai
Kabul

Karachi

Delhi

Dhaka

Yangon

Bangkok

Singapore

Hong Kong

Beijing

Taipei
Seoul
Tokyo

Adelaide

Guam

Sydney

Noumea

Wellington

+2

+3

+3.5
+4
+4.5
+5
+5.5
+6
+6.5
+7

+8

+9

+9.5

+10

+11
+12

ATH

CAI

JRS

MOW

JED

THR
DXB

KBL

KHI

DEL
DAC

RGN

BKK

SIN

HKG

BJS
TPE
SEL

TYO
ADL

GUM

SYD

NOU
WLG

Based on data as of December 2008.

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

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