Casio 3420 Operation Manual Download Page 5

Operation Guide 3420

L-5

 

*

 As of December 2012, the offi cial UTC offset for Caracas, Venezuela (CCS) has 
been changed from –4 to –4.5, but this watch still uses an offset of –4 (the old 
offset) for CCS.

** 

 As of December 2012, the offi cial UTC offset for Moscow, Russia (MOW) has 
been changed from +3 to +4, but this watch still uses an offset of +3 (the old 
offset) for MOW. Because of this, you should leave the summer time setting 
turned on (which advances the time by one hour) for the MOW time.

  

x

 This table shows the city codes of this watch.

  

x

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

L-4

City 

Code

City

UTC Offset/

GMT Differential

Other major cities in same time zone

KBL

Kabul

+4.5

KHI

Karachi

+5

MLE

Male

DEL

Delhi

+5.5

Mumbai, Kolkata

DAC

Dhaka

+6

Colombo

RGN

Yangon

+6.5

BKK

Bangkok

+7

Jakarta, Phnom Penh, Hanoi, Vientiane

SIN

Singapore

+8

Kuala Lumpur, Taipei, Manila, Perth, Ulaanbaatar

HKG

Hong Kong

BJS

Beijing

SEL

Seoul

+9

Pyongyang

TYO

Tokyo

ADL

Adelaide

+9.5

Darwin

GUM

Guam

+10

Melbourne, Rabaul

SYD

Sydney

NOU

Noumea

+11

Port Vila

WLG

Wellington

+12

Christchurch, Nadi, Nauru Island

L-3

City 

Code

City

UTC Offset/

GMT Differential

Other major cities in same time zone

LIS

Lisbon

0

Dublin, Casablanca, Dakar, Abidjan

LON

London

BCN

Barcelona

+1

Amsterdam, Algiers, Hamburg, Frankfurt, Vienna, 
Stockholm, Madrid

PAR

Paris

MIL

Milan

ROM

Rome

BER

Berlin

ATH

Athens

+2

Helsinki, Beirut, Damascus, Cape Town

JNB

Johannesburg

IST

Istanbul

CAI

Cairo

JRS

Jerusalem

MOW**

Moscow

+3

Kuwait, Riyadh, Aden, Addis Ababa, Nairobi

JED

Jeddah

THR

Tehran

+3.5

Shiraz

DXB

Dubai

+4

Abu Dhabi, Muscat

L-2

 City Code Table

City 

Code

City

UTC Offset/

GMT Differential

Other major cities in same time zone

PPG

Pago Pago

–11

HNL

Honolulu

–10

Papeete

ANC

Anchorage

–9

Nome

YVR

Vancouver

–8

Las Vegas, Seattle/Tacoma, Dawson City

SFO

San Francisco

LAX

Los Angeles

DEN

Denver

–7

El Paso, Edmonton

MEX

Mexico City

–6

Winnipeg, Houston, Dallas/Fort Worth, 
New Orleans

CHI

Chicago

MIA

Miami

–5

Montreal, Detroit, Boston, Panama City, Havana, 
Lima, Bogota

NYC

New York

CCS*

Caracas

–4

La Paz, Santiago, Port Of Spain

YYT

St. Johns

–3.5

RIO

Rio De Janeiro

–3

Sao Paulo, Buenos Aires, Brasilia, Montevideo

RAI

Praia

–1

L-1

City Code Table

E-43

Stopwatch

Measuring unit: 1/100 second 
Measuring capacity: 23:59' 59.99"
Measuring modes: Elapsed time, split time, two fi nishes

Illumination: 

 LED (light-emitting diode); Selectable illumination duration; 
Auto Light Switch

Other:

 Button operation tone on/off, Flash alert

Battery:

 One lithium battery (Type: CR2032)

Approximately 10 years on type CR2032 (10 seconds of alarm operation 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)

E-42

Specifi cations

Accuracy at normal temperature:

 ±15 seconds a month

Timekeeping:

 Hour, minutes, seconds, p.m. (P), year, 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 mul ti-function* alarms (with 1 snooze alarm); Hourly Time Signal

*Alarm type: Daily alarm, date alarm, 1-month alarm, monthly alarm

Countdown Timer

Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Other: Auto-repeat timing; Progress beeper

E-41

 

x

 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.

 

x

 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.

E-40

Auto light switch precautions

 

x

 Avoid wearing the watch on the inside of your wrist. Doing so 
causes the auto light 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, disable the auto light switch feature.

 

x

 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.

 

x

 Illumination turns off after the preset illumination duration (see 
“To specify the illumination duration” (page E-30)), even if you 
keep the watch pointed towards your face.

 

x

 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.

Summary of Contents for 3420

Page 1: ...isplayed in the Timekeeping Mode and World Time Mode are linked Because of this make sure you select a Home Time zone before you set the time and date Seconds Hour Minutes PM indicator Day of week Month Day E 5 C Stopwatch Mode Countdown Timer Mode Alarm Mode C C E 4 General Guide x Press C to change from mode to mode x In any mode except when a setting screen is on the display press L to illumina...

Page 2: ...l zeros in the Stopwatch Mode press B x This displays a 5 second countdown screen x To return to the all zeros screen press B again 2 Press D to start the countdown x When the countdown reaches zero a tone sounds and a stopwatch timing operation starts automatically x Pressing D while the Auto Start countdown is in progress immediately starts the stopwatch E 14 To measure times with the stopwatch ...

Page 3: ...et an alarm time 1 In the Alarm Mode use D or B to scroll through the alarm screens until the one whose time you want to set is displayed x To set a one time alarm display an alarm screen or To set the snooze alarm display the screen x The snooze alarm repeats every five minutes 2 After you select an alarm hold down A until the hour setting of the alarm time starts to flash which indicates the set...

Page 4: ...rent time flashes on the display This is the setting screen 2 Press C eight times to display the Flash Alert setting screen 3 Press D to toggle Flash Alert on displayed and off displayed 4 Press A to exit the setting screen x The Flash Alert setting you select with the above procedure is applied in all modes x When Flash Alert is on appears on the timekeeping screen for about one second whenever y...

Page 5: ...finishes Illumination LED light emitting diode Selectable illumination duration Auto Light Switch Other Button operation tone on off Flash alert Battery One lithium battery Type CR2032 Approximately 10 years on type CR2032 10 seconds of alarm operation per day one countdown timer operation with progress beeper per week one stopwatch operation with auto start per week 1 5 seconds of illumination pe...

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