●
Remaining Charge and Dead Battery
You can determine if the charge level is low by
checking the hand movement. Functions
become disabled as battery power goes low.
Important!
●
Should the battery go low or go dead,
expose the face (solar panel) to light as
soon as possible.
Note
●
Exposing the watch face to light after
the battery goes dead will cause the
second hand to revolve
counterclockwise until it stops at
second 57. This indicates charging
has started.
Low Battery Power
The second hand jumps at two-second
intervals.
Dead Battery
All hands and the day indicator are stopped.
●
Charging Time Guidelines
The table below shows guidelines for
approximate charging times.
Charging Times Required for 1 Day of
Operation
Light Level (Lux)
Approximate
Charging Time
50,000 8 minutes
10,000 30 minutes
5,000 48 minutes
500 8 hours
Charge Recovery Times
●
Sunny day, outdoors (50,000 lux)
Dead battery
n
Medium
charge
2 hours
Medium charge
n
High
charge
18 hours
High charge
n
Full charge
5 hours
●
Sunny day, near a window (10,000 lux)
Dead battery
n
Medium
charge
6 hours
Medium charge
n
High
charge
66 hours
High charge
n
Full charge
18 hours
●
Overcast day, near a window (5,000 lux)
Dead battery
n
Medium
charge
8 hours
Medium charge
n
High
charge
107 hours
High charge
n
Full charge
29 hours
●
Indoor fluorescent lighting (500 lux)
Dead battery
n
Medium
charge
94 hours
Medium charge
n
High
charge
-
High charge
n
Full charge
-
Note
●
Actual charging time depends on the
charging environment, watch settings,
and other factors.
●
Power Saving
Leaving the watch in a dark location for about
one hour between the hours of 10 p.m. and
5:50 a.m. will cause the second hand to stop
(hand sleep), and the watch to enter Level 1
power saving. If the watch is left in this
condition for six or seven days, all hands will
stop and the watch will enter Level 2 power
saving.
Level 1 :
Basic timekeeping functions are operational.
Level 2 :
Only the day indicator is operational.
Note
●
Note that the watch also may enter the
power saving state if its face is blocked
from light by your sleeve while you are
wearing it.
●
Recovering from Power Saving
Operation
To recover from power saving, perform one of
the following operations: press (A), perform a
crown operation, or place the watch in a well-
lit area.
Useful Features
Pairing the watch with your phone makes a
number of the watch’s features easier to use.
Auto time correction
l
Auto Time Correction
In addition, a number of other watch settings
can be configured using your phone.
To transfer data to a watch and to
configure settings, you first need to pair
the watch with your phone.
l
Getting Ready
●
Your phone needs to have the “CASIO
WATCHES” phone app installed to pair with
the watch.
Watch Operation Guide 5728
8