Casio 3521, Operation Manual, Page: 5 / 21

Before Getting
Started...
This section provides an overview of the watch
and introduces convenient ways it can be
used.
Important!
●
This watch is not a special-purpose
measuring instrument. Measurement
function readings are intended for
general reference only.
●
It can be used while skin diving, scuba
diving, etc.
l
Using the Dive Function
●
Watch Features
●
Solar Charging
Sunlight and artificial light generate
electricity for watch operation as it charges.
●
Dive Function
You can use this function to measure your
dive times and surface intervals. You can
also view dive logs, and record dates and
times. You can delete data as required.
●
Tide Level and Moon Age
You can look up the tide level and Moon age
on a date and time you specify.
●
World Time
World Time displays the current time in any
of 31 time zones around the globe.
●
Alarm
An alarm sounds whenever a time specified
by you is reached.
●
Stopwatch
You can use the stopwatch to measure up
to 24 hours of elapsed time in units of 1/100
of a second.
●
Timer
Countdown from a start time specified by
you. An alarm sounds when the countdown
reaches zero.
Note
●
The illustrations included in this
operation guide have been created to
facilitate explanation. An illustration
may differ somewhat from the item it
represents.
General Guide
④
① ②
③
⑤
A
Moon Graph
B
Tide Graph
C
Day of the week
D
Hour, minute, second
E
Month, day
A button
Holding down this button for at least two
seconds in any mode displays the setting
screen.
B button
Press to turn on illumination.
C button
Each press cycles between watch modes.
D button
Pressing this button while any setting screen
is displayed will change the setting.
Indicators
⑫
⑧
⑨ ⑩ ⑪
⑭
⑬
⑦
①
③
②
⑤ ⑥ ④
A
Shows a Tide Graph (tide level) at the
current time.
B
Shows the Moon Graph (Moon phase) of
the current date.
C
Displayed while the snooze alarm is
turned on.
D
Displayed while an alarm is turned on.
E
Displayed while the hourly time signal is
enabled.
F
Displayed while the button operation tone
is disabled.
G
Displayed while Auto Light is enabled.
H
Displayed while the watch is indicating
summer time.
I
Displayed while Power Saving is enabled.
J
Flashes when battery power is low.
K
Displayed while in the Dive Mode.
L
Displayed while in the Log Data Recall
Mode.
M
Shows the current charge level.
N
Displayed during p.m. times while 12-hour
timekeeping is being used.
Watch Operation Guide 3521
5