Operation Guide 3311 5052
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to carefully read this manual and keep it on hand for later reference when necessary.
•This watch does not have a time zone that corresponds to the Greenwich Mean Time differential of
Keep the watch exposed to bright light
•The actual level at which some functions are disabled depends on the watch model.
•Frequent display illumination can run down the battery quickly and require charging. The following guidelines give an idea of the charging time required to recover from a single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window Approximately 50 minutes exposure to indoor fluorescent lighting
•Be sure to read “Power Supply” for important information you need to know when exposing the watch to bright light.
If the digital display of the watch is blank...
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l | l | l l l | l | l l l | l | l | where it is not exposed to light causes the battery to run |
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Solar cell |
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• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will result in some watch functions to be disabled. If the battery goes dead, you will have to
Battery charges in the light. | Battery discharges in the dark. | ||||
Solar cell | Bright Light | Electrical |
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(Converts light to |
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electrical power.) |
| energy |
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| LEVEL 1 | All |
| LEVEL 1 |
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| LEVEL 2 | functions |
| LEVEL 2 |
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| LEVEL 3 |
| Dis- | LEVEL 3 | |
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Charge |
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| charge | LEVEL 4 | |
LEVEL 4 |
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About This Manual
Module 3311
If the Power Saving indicator (PS) is flashing on the display, it means that the display is blank because the watch’s Power Saving function has turned it off to conserve power. Power Saving automatically turns off the display and enters a sleep state whenever your watch is left for a certain period in an area where it is dark. If the watch is kept in the dark for a longer period, the analog hands will also stop moving after a few days.
•The initial factory default setting is Power Saving on.
•The watch will recover from the sleep state if you move it to a
•See “Power Saving Function” for more information.
•The operational procedures for Modules 3311 and 5052 are identical. All of the illustrations in this manual show Module 3311.
•Button operations are indicated using the letters shown in the illustration.
•Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.
Rechargeable battery
General Guide
•Press Cto change from mode to mode.
•In any mode, press B to illuminate the display.
Timekeeping Mode
| Press C. |
| Hand Setting Mode |
▲ | ▲ |
Radio-controlled Atomic Timekeeping
Module 5052 |
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Battery Level Indicator | World Time Mode |
▲ | ▲ |
or |
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Stopwatch Mode | Alarm Mode |
▲ | ▲ |
Hour hand
Minute hand
Day
Day of week
Second hand
This watch receives a time calibration signal and updates its time setting accordingly. The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.
•This watch is designed to pick up the time calibration signal transmitted in the United States (Fort Collins, Colorado) and the time calibration signals transmitted in Japan.
•The U.S. time calibration signal can be picked up by the watch while in North America.*
*The term “North America” in this manual refers to the area that consists of Canada, the continental United States, and Mexico.
TYO: All cities in Japan
SEL: Seoul
HKG: Hong Kong
• Note that this watch does not have a city code that corresponds to Newfoundland.
4.Press A twice to exit the setting screen.
•The first press of A displays the
•The second hand will advance at high speed to the correct position in accordance with seconds count of the digital time, and resume normal movement from there.
•Normally, your watch should show the correct time as soon as you select your Home City Code. If it does not, it should adjust automatically after the next auto receive (in the middle of the night). You can also perform manual receive or you can set the time manually.
•If you are in an area that does not use Daylight Saving Time (summer time), turn off the DST setting.
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration signal. You can also perform a manual procedure to set the time and date, when necessary.
•The first thing you should do after purchasing this watch is to set your Home City, which is the city where you will normally use the watch. For more information, see “To set your Home City” below.
•When using the watch outside the ranges of the U.S. and Japanese time signal transmitters, you have to adjust the current time setting manually as required. See “Timekeeping” for more information about manual time setting.
•The analog time of this watch is synchronized with the digital time. Because of this, the analog time setting is automatically adjusted whenever you change the digital setting. See “Analog Timekeeping” for more information.
To set your Home City
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l | l | • The second hand will move at high speed to the 12 | |
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l l l l l | 2. Press Conce so the city code is flashing on the display. | ||
Transmitter indicator | 3. Use D(east) and B(west) to scroll through the city | ||
codes until the one you want to use as your Home City | |||
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HNL: Honolulu
ANC: Anchorage
LAX: Los Angeles, San Francisco, Las Vegas, Seattle, Vancouver, Tijuana
DEN: Denver, El Paso, Edmonton, Culiacan
CHI: Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico City
NYC: New York, Detroit, Miami, Boston, Montreal
To display the digital time and last signal screen
•In the Timekeeping Mode, press A to cycle through the digital time screens as shown below.
•In the Timekeeping Mode, press D to display the last signal screen. The last signal screen shows the date and time of the last successful time calibration signal reception.
Date Screen | Receiving Indicator |
Day | and Seconds Count |
Receiving indicator
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| Seconds |
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Day of week ▲Press D. | Current Time Screen | ||
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| A |
| Hour : Minutes |
▲ Reception date |
| PM indicator | |
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| Reception Time |
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Last Signal Screen |
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2 seconds
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