Casio 5130 (OC) User's Manual

Casio Watches User's Manual - 5130 (OC).
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Operation Guide 5130 (OC)

MA1003-EA

Congratulations upon your selection of this CASIO watch.

This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of 

this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, 

Canada.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by 

you or any third party arising through the use of this product or its malfunction.

About This Manual

Button operations are indicated using the letters A through D shown in the 

illustration.

Hand Functions

 Hour Hand

 Second Hand

 Minute Hand

 Day

This User’s Guide uses numbers shown above to identify watch hands and 

indicators.

B

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@

 When power drops to Level 3, all functions will be disabled but the watch will continue to keep time 

 

internally for about one week. If you recharge the battery sufficiently during this period, the analog 

hands will move automatically to the correct setting and regular timekeeping will resume. After one 

week, all settings (including timekeeping) will be cleared. Recharging the battery will reset all settings 

to their initial factory defaults.

Charging Times

Exposure Level (Brightness)

Daily Operation 

*1

Level Change *2

Level 3

Level 2

Level 1

Outdoor sunlight (50,000 lux)

8 minutes

2 hours

25 hours

Window sunlight (10,000 lux)

30 minutes

6 hours

92 hours

Window sunlight on cloudy day (5,000 lux)

48 minutes

9 hours

– – –

Indoor fluorescent lighting (500 lux)

8 hours

101 hours

– – –

1  Approximate exposure each day to generate power for normal daily operation

 

*

2  Approximate exposure to take power up one level

 

*

 The above times are for reference only. Actual times depend on lighting conditions.

 

 For details about the operating time and daily operating conditions, see the “Power Supply” section of 

 

the Specifications.

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 sleep)

x

 Second Hand only stopped at 12 o’clock, all other functions enabled

6 or 7 days (function sleep)

All functions, including analog timekeeping, disabled

 

Internal timekeeping maintained

 

 The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep 

 

state when 6:00 AM arrives, however, it will remain in the sleep state.

To recover from the sleep state
Move the watch to a well-lit area or press any button.

Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when 

using the watch outside of areas covered by time calibration signals, you will have to adjust the settings 

manually as required. See “Configuring Current Time and Date Settings Manually” for more information.
This section explains how the watch updates its time settings when the city code selected as the Home 

City is in Japan, North America, Europe, or China, and is one that supports time calibration signal 

reception.

If your Home City Code setting is this:

The watch can receive the signal from  

the transmitter located here:

LONDON (LON), PARIS (PAR), ATHENS (ATH)

Anthorn (England), Mainflingen (Germany)

HONG KONG (HKG)

Shangqiu City (China)

TOKYO (TYO)

Fukushima (Japan), Fukuoka/Saga (Japan)

HONOLULU (HNL), ANCHORAGE (ANC), LOS ANGELES (LAX), 

DENVER (DEN), CHICAGO (CHI), NEW YORK (NYC)

Fort Collins, Colorado (United States)

Important!

 The areas covered by 

 

HONOLULU (HNL) and ANCHORAGE (ANC) are quite far from the calibration 

signal transmitters, so certain conditions may cause reception problems.
 When 

 

HONOLULU (HNL) or HONG KONG (HKG) is selected as the Home City, only the time and date 

are adjusted according to the time calibration signal. You need to switch manually between standard 

time and daylight saving time (DST) if required. See “To configure Home City settings” for information 

about how to do this.

Approximate Reception Ranges

Japanese Signals

Chinese Signal

1,500 kilometers

Changchun

500 kilometers

Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong

UK and German Signals

North American Signal

Anthorn

500 kilometers

1,500 kilometers

Mainflingen

The Anthorn signal is 

receivable within this area.

2,000 miles

(3,000 kilometers)

600 miles

(1,000 kilometers)

Fort Collins

Fukushima

500 kilometers

1,000 kilometers

Fukuoka/Saga

 Even when the watch is within range of a transmitter, signal reception may be impossible due to the 

 

effects of geographic contours, structures, weather, the time of year, the time of day, radio interference, 

etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the 

influence of the above conditions becomes even greater.
 Signal reception may not be possible at the distances noted below during certain times of the year or 

 

day. Radio interference may also cause problems with reception.

 Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)

 

 Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)

 

 Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)

 

 Shangqiu (China) transmitter: 500 kilometers (310 miles)

 

 As of January 2010, China does not use Daylight Saving Time (DST). If China does go to the Daylight 

 

Saving Time system in the future, some functions of this watch may no longer operate correctly.
 Using this watch in a country covered by a time calibration signal that is different from the countries it 

 

supports may result in incorrect time indication due to local application of summer time, etc.

Things to check before using the watch

1.  Hold down C at least two seconds to enter regular timekeeping, and then observe the 

movement of the x Second Hand.

Is the x Second Hand moving smoothly at one-second intervals?

Is the x Second Hand moving at two-second intervals 

or is it stopped completely?

Go to step 2.

The watch is charged sufficiently. For details 

about charging, see “Charging the Watch”.

Power is low. Charge the watch by placing it in a 

location where it is exposed to light. For details, see 

“Charging the Watch”.

NO

YES

YES

NEXT

2.  Check the Home City and the daylight saving time (DST) setting.

Use the procedure under “To configure Home City settings” to configure your Home City and daylight 

saving time settings.

Important!
Proper time calibration signal reception and World Time settings depend on correct Home City, Home 

Time, and Home Date settings. Make sure you configure these settings correctly.

3.  Set the current time.

  

• To set the time using a time calibration signal 

See “To get ready for a receive operation”.
  

• To set the time manually 

See “Configuring Current Time and Date Settings Manually”.

The watch is now ready for use.

 For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic 

 

Timekeeping”.

Charging the Watch
The face of the watch is a solar cell that generates power from light. The generated power charges a 

built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed 

to light.

Charging Guide

Whenever you are not 

wearing the watch, leave 

it in a location where it is 

exposed to light.

 Best charging 

 

performance is achieved 

by exposing the watch to 

light that is as strong as 

possible.

When wearing the watch, make 

sure that its face is not blocked 

from light by the sleeve of your 

clothing.

 The watch may enter a sleep 

 

state if its face is blocked by 

your sleeve even only partially.

Warning!
Leaving the watch in bright light for charging can cause it to become quite hot. Take care when 

handling the watch to avoid burn injury. The watch can become particularly hot when exposed to 

the following conditions for long periods.

 On the dashboard of a car parked in direct sunlight

 

 Too close to an incandescent lamp

 

 Under direct sunlight

 

Important!

 Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps 

 

to ensure that power does not run down.
 Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is 

 

blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to 

bright light whenever possible.

Power Levels

You can get an idea of the watch’s power level by observing the movement of 

the x 

Second Hand.

 If the 

 

x

 Second Hand is moving normally at one-second intervals, power is 

at Level 1.
 If the 

 

x

 Second Hand is moving at two-second intervals, power is at Level 

2, which is quite low. Expose the watch to light as soon as possible so it 

can charge.

Level Hand Movement

Function Status

1

Normal

All functions enabled

2

x

 Second Hand moves at two-second 

intervals.

v

 Day changes to 1 (home position).

Time calibration signal reception 

disabled

3

x

 Second Hand stopped.

z

 Hour Hand and c Minute Hand 

stopped at 12 o’clock.

All functions disabled

Moves at two-second 

intervals.

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