Quick Start
Quick Reference Manual 3452
E-9
Using the Watch
Selecting a Function
 Selecting a 
Setting
Timekeeping 
Mode
Selecting 
Navigation
Selecting Time 
Calibration 
(Receive)
Rotary switch
Selecting a 
Mode
Illumination on
A
CD
E-8
Important!
 x  Should water ever get onto the charger and/or watch while charging, immediately 
unplug the USB cable from the charger to stop charging.
 x  If charging stops part way through for some reason, remove the watch from the 
charger and unplug the USB cable from the charger. After confirming there are no
problems, try charging again.
E-7
1. Mount the watch onto the charger.
 x  Check to make sure that the watch is being 
securely grasped by the charger’s hooks, and
contact with the charger.
2. Turn on the computer or other device to be used 
for power, and connect the other end of the USB 
cable to a USB port of the device.
3. Connect the USB cable to the charger.
 x  This starts charging (
 displayed).
 x    disappears from the display when a full charge 
is reached.
E-6
Charging with the Charger
When charging on a desk or other work surface, keep other articles away from the 
charger and watch.
 x  Use only the charger and USB cable that comes with the watch for charging.
2
1
3
USB
Charger
Computer, etc.
E-5
Solar Charging
Remove the watch from your wrist and place it in a brightly lit area.
 x  The watch may become hot when exposed to light for charging. Take care to avoid 
burn injury.
 x  Avoid charging in locations where it is very hot.
E-4
Charging the Watch
Your watch can be charged using solar charging or a charger.
 x  Use the charger in the cases below.
 −  To charge quickly or to bring the watch to a full charge 
before going out
 −  When the battery indicator shows only one or two bars, or 
when the watch display is blank
 x  If the watch will not charge because you left it with a blank 
display for along period contact your original retailer.
Battery indicator
E-3
Bluetooth
®
 is a registered trademark or trademark of Bluetooth SIG, Inc. of the 
United States.
Your watch has a Mobile Link function that allows it to communicate with a 
Bluetooth
®
 mobile phone and adjust its time settings to match those of the 
mobile phone.
 x  This product complies with or has received approval under radio laws in various 
countries and geographic areas. Use of this product in an area where it does not
conform to or where it has not been approved under applicable radio laws may 
be punishable under local laws. For details, visit http://world.casio.com/ce/BLE/.
 x  Use of this product inside of an aircraft is restricted by the aviation laws of each 
country. Be sure to obey instructions provided by flight personnel concerning
use of devices such as this product.
E-2
Contents
Charging the Watch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4
Solar Charging  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5
Charging with the Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-6
Using the Watch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-9
Selecting a Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-9
Adjusting the Time Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-11
GPS Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-13
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-14
Operating Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-21
User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-32
E-1
ENGLISH
Congratulations upon your selection of this CASIO watch.
To ensure that this watch 
provides you with the years 
of service for which it is 
designed, carefully read and 
follow the instructions in 
this manual, especially the 
information under “Operating 
Precautions” and “User 
Maintenance”.
Be sure to keep all user 
documentation handy for 
future reference.
For a full Operation Guide 
and Q&A information about 
this product, go to the 
website below.
http://world.casio.com/manual/wat/
MA1810-EB
©
 2018 CASIO COMPUTER CO., LTD.



