Supported Phones; Specifications - Casio 3509 Operation Manual

Summer Time Summer Time
City Name
Start
02:00, last
01:00, last
London Sunday in
Sunday in March
October
03:00, last
02:00, last
Paris Sunday in
Sunday in March
October
04:00, last
03:00, last
Athens Sunday in
Sunday in March
October
00:00,
00:00, March 22
Tehran September 22 or
or 21
21
02:00, first
Sydney, 03:00, first
Sunday in
Adelaide Sunday in April
October
02:00, first
Lord Howe 02:00, first
Sunday in
Island Sunday in April
October
02:00, last
03:00, first
Wellington Sunday in
Sunday in April
September
02:45, last
Chatham 03:45, first
Sunday in
Islands Sunday in April
September
02:00, first
02:00, second
Anchorage Sunday in
Sunday in March
November
02:00, first
Los 02:00, second
Sunday in
Angeles Sunday in March
November
02:00, first
02:00, second
Denver Sunday in
Sunday in March
November
02:00, first
02:00, second
Chicago Sunday in
Sunday in March
November
02:00, first
02:00, second
New York Sunday in
Sunday in March
November
02:00, first
02:00, second
Halifax Sunday in
Sunday in March
November
02:00, first
02:00, second
St. John's Sunday in
Sunday in March
November
The information in the above table is current
●
as of January 2022.

Supported Phones

For information about phones that can
connect with the watch, visit the CASIO
website.
https://world.casio.com/os_mobile/wat/
Watch Operation Guide 3509

Specifications

End
Accuracy at normal temperature :
±15 seconds per month average when time
adjustment by communication with a phone
is not possible.
Timekeeping :
Hour, minute, second, month, day, day of
the week
a.m./p.m.(P)/24-hour timekeeping
Full Auto Calendar (2000 to 2099)
Summer Time
World Time :
38 cities (38 time zones) and Coordinated
Universal Time (UTC)
Summer time
Home Time swapping
Stopwatch :
Measurement unit:
1/100 seconds (first hour); 1 second
(after first hour)
Measuring range: 23 hours 59 minutes 59
seconds
Measurement Functions:
Elapsed time, split times, 1st and 2nd
place finisher times
Timer :
Measuring unit: 1 second
Countdown range: 24 hours
Time setting unit: 1 second
Time setting range: 1 second to 24 hours
10-second beeper when the end of the
countdown is reached
Alarm :
Time alarm
Number of alarms: 5
Setting units: Hours, minutes
Alarm tone duration: 10 seconds
Hourly time signal: Beep every hour on the
hour
Mobile Link :
Auto Time Adjustment
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 mobile phone
World Time
Current time for approximately 300 cities
selected for the watch
Home Time/World Time swapping
Auto Summer Time Switching
Automatic switching between standard
time and summer time
Timer Settings
Alarm Settings
App Info Receive
Displays new information from the app on
the watch
Data Communication Specifications
Bluetooth ®
Frequency Band: 2400MHz to 2480MHz
Maximum Transmission: 0 dBm (1 mW)
Communication range: Up to 2 meters
(depends on environment)
Other :
LED backlight (Super Illuminator, afterglow
with selectable 1.5 or 3-second duration),
Auto light, selectable date format,
selectable day of the week language, auto
time adjustment enable/disable, operation
tone enable/disable
Power Supply :
CR2016 x 1
Battery life: Approximately 3 years
Conditions:
Auto time adjust by phone: 4 times/day
Alarm: Once (10 seconds)/day
Illumination: Once (1.5 seconds)/day
Specifications are subject to change without
notice.
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