Supported Phones; Specifications; Mobile Link Precautions - Casio 5603 Operation Manual

Supported Phones

For information about phones that can
connect with the watch, visit the CASIO
website.
https://world.casio.com/os_mobile/wat/

Specifications

Accuracy at normal temperature :
±15 seconds per month average when time
adjustment by time calibration signal
reception or by communication with a phone
is not possible.
Timekeeping :
Hour, minute, second, day (2000 to 2099
full auto calendar), day of the week
Signal Receive Functions :
Auto receive, manual receive
Auto transmitter selection (for JJY, MSF/
DCF77)
Receivable Call Signs
JJY (40kHz/60kHz), BPC (68.5kHz),
WWVB (60kHz), MSF (60kHz), DCF77
(77.5kHz)
Standard Time
Summer time auto/manual switching
World Time :
Current time in 38 time zones (including 27
world cities)* and Coordinated Universal
Time (UTC) time display, summer time auto
switching
* Subject to updates by connection between
the watch and a phone.
Mobile Link :
Auto Time Correction
Time setting adjusted automatically at
preset time.
One-touch Time Correction
Manual connection and time adjustment
Phone finder
Watch operation sounds the alert sound
of the phone.
Home Time swapping
Auto summer time setting
Automatic switching between standard
time and summer time.
Hand alignment correction
Data Communication Specifications
Bluetooth ®
Frequency Band: 2400MHz to 2480MHz
Maximum Transmission: 0 dBm (1 mW)
Communication range: Up to 2 meters
(depends on environment)
Operation Guide 5603
Stopwatch :
Measuring unit: 1 second
Measuring capacity: 23:59'59" (24 hours)
Measuring functions: Elapsed time
Other :
Auto hand position correction, Power
Saving, battery indicator, battery charge
alert
Power Supply :
Solar panel and one rechargeable battery
Approximate Battery Life :
Approximately 5 months
Conditions
Not exposed to light under the conditions
below.
Auto Time Adjustment: 4 times/day
Power Saving: 6 hours/day
Specifications are subject to change without
notice.

Mobile Link Precautions

Legal Precautions
●
This watch complies with or has received
●
approval under the radio laws of various
countries and geographical areas. Using
this watch in an area where it does not
comply with or has not received approval
under applicable radio laws may be a
criminal offense. For details, visit the CASIO
Website.
https://world.casio.com/ce/BLE/
Use of this watch inside of aircraft is
●
restricted under the aviation laws of each
country. Be sure to follow the instructions of
airline personnel.
Precautions when using Mobile Link
●
When using this watch in combination with
●
a phone, keep the watch and phone close
to each other. A range of two meters is
recommended as a guideline, but the local
environment (walls, furniture, etc.), the
structure of a building, and other factors
may require a much closer range.
This watch can be affected by other devices
●
(electrical devices, audio-visual equipment,
office equipment, etc.) In particular, it can
be affected by operation of a microwave
oven. The watch may not be able to
communicate normally with a phone if a
microwave oven is operating nearby.
Conversely, this watch may cause noise in
radio reception and the video image of a TV.
Bluetooth of this watch uses the same
●
frequency band (2.4 GHz) as wireless LAN
devices, and use of such devices in close
proximity of this watch may result in radio
interference, slower communication
speeds and noise for the watch and the
wireless LAN device, or even
communication failure.
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