Casio 5182 User Manual

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

x

x Second Hand in the 

Timekeeping Mode.

 If the 

 

x

x Second Hand is moving normally at one-second 

intervals, power is at Level 1.
 If the 

 

x

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.

Moves at two-second 
intervals.

@

B

+

5

1

Normal.

All functions enabled

2

x

x Second Hand moves at two-second 

intervals.

m

m Day changes to 1 (home position).

Beeper disabled

3

x

x Second Hand stopped.

 z

 z Hour Hand and c

c Minute Hand 

stopped at 12 o’clock.

All functions disabled

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

 

x

continue to keep time internally for about one week. If you recharge the battery 
suffi ciently 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.

Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation 
temporarily whenever power suddenly drops below a certain level due to overuse 
of the alarm tone over a short period. Note that all operations are disabled while the 
watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal 
operation after power recovers (in about 15 minutes). Putting the watch in a location 
where it is exposed to light will help power to recover sooner.

Outdoor sunlight (50,000 lux)

8 minutes

2 hours

27 hours

Window sunlight (10,000 lux)

30 minutes

6 hours

100 hours

Window sunlight on cloudy day 
(5,000 lux)

48 minutes

10 hours

162 hours

Indoor fl uorescent lighting (500 lux)

8 hours

112 hours

– – –

*

*

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

 

x

 For details about the operating time and daily operating conditions, see the “Power 

 

x

Supply” section of the Specifi cations (page E-59).

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”.

 

x

60 to 70 minutes (second hand sleep)

x

x Second Hand only stopped at 12 o’clock, all 

other functions enabled

6 or 7 days (function sleep)

 All functions, including analog timekeeping, 

  

x

disabled
 Internal timekeeping maintained

  

x

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

 

x

is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep 
state.
 The watch will not enter a sleep state while it is in the Stopwatch Mode.

 

x

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

Your watch has four “modes”. The mode you should select depends on what you 
want to do.

 There are also various setting modes, which you can enter by holding down 

 

x

A in 

the Timekeeping Mode. See “Setting Modes” (page E-20) for more information.

 View the current time in your Home City and in one of 29 other 

  

x

cities around the globe
 View the current date in the Home City

  

x

Timekeeping 
Mode

E-23

Use the stopwatch to measure elapsed time

Stopwatch Mode

E-35

 Select one of 29 cities (time zones) around the world and view 

  

x

the current time there
 Select daylight saving/summer time (DST) or standard time 

  

x

for a time zone

World Time Mode

E-40

Set an alarm time

Alarm Mode

E-46

Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.

To determine the watch’s current mode
Check the position of the 

v

v Left Dial Hand as shown 

under “To select a mode” (page E-19).

To return to the Timekeeping Mode from any other 
mode
Hold down 

C for at least two seconds.

>

To select a mode
Press 

C to cycle between the modes as shown below. The v

v Left Dial Hand 

indicates the currently selected mode.
The 

v Left Dial Hand rotates so the indicator for the current mode (TM, ST, WT, AL) 

is aligned with the pointer  .

>

v Left Dial Hand indicates 
TM.

v Left Dial Hand indicates 
ST, then aligns the dial hand 
with the pointer  .

C

v Left Dial Hand indicates 
WT, then aligns the dial hand 
with STD or DST.

v Left Dial Hand indicates 
AL.