Casio LDF-52-1A manual

Casio LDF-52-1A
  • Number of pages: 2
  • Filetype: PDF
  • 1
    Operation Guide 3171
    About This Manual
    Depending on the model of your watch, display text appears either as dark figures
    on a light background or light figures on a dark background. All sample displays in
    this manual are shown using dark figures on a light background.
    Button operations are indicated using the letters shown in the illustration.
    Timekeeping Mode
    Alarm Mode
    Stopwatch Mode
    Dual Time Mode
    Press .
    Each section of this manual provides you with the information you need to perform
    operations in each mode. Further details and technical information can be found in
    the “Reference” section.
    General Guide
    Press C to change from mode to mode.
    In any mode, press L to illuminate the display.
    3. When the setting you want to change is flashing, press B to change it as
    described below.
    Pressing B while the seconds are in the range of 30 to 59 resets them to 00 and
    adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.
    4. Press A to exit the setting screen.
    The year can be set in the range of 2000 to 2099.
    The watch’s built-in full automatic calendar makes allowances for different month
    lengths and leap years. Once you set the date, there should be no reason to change
    it except after you have the watch’s battery replaced.
    To toggle between 12-hour and 24-hour timekeeping
    In the Timekeeping Mode, press B to toggle between 12-hour timekeeping and
    24-hour timekeeping.
    With the 12-hour format, the
    (PM) indicator appears to the left of the hour digits
    for times in the range of noon to 11:59 p.m. and no indicator appears to the left of
    the hour digits for times in the range of midnight to 11:59 a.m.
    With the 24-hour format, times are displayed in the range of 0:00 to 23:59, with
    and indicators are not displayed with the Timekeeping Mode time on the
    Alarm Mode and Dual Time Mode screens.
    The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
    applied in all other modes.
    To change this setting
    Hour, Minutes, Year, Month,
    Day, Day of week
    Perform this button operation
    Press B to reset to 00.
    Press B to increase the setting.
    Holding down B changes the setting at high speed.
    Use the Timekeeping Mode to set and view the current
    time and date.
    To set the time and date
    1. In the Timekeeping Mode, hold down A until the
    seconds start to flash, which indicates the setting
    2. Press C to move the flashing in the sequence shown
    below to select other settings.
    Seconds Hour
    YearMonthDay of the week Day
    PM indicator
    Month – Day
    Hour : Minutes
    Day of week
    Alarm time
    (Hour : Minutes)
    Timekeeping Mode time
    (Hour : Minutes)
    Mode indicator
    When the daily alarm is turned on, the alarm tone sounds
    when the alarm time is reached.
    You can also turn on an Hourly Time Signal that causes
    the watch to beep twice every hour on the hour.
    All of the operations in this section are performed in the
    Alarm Mode, which you enter by pressing C.
    Alarm Operation
    The alarm tone sounds at the preset time for 10 seconds,
    regardless of the mode the watch is in.
    Hourly time signal
    on indicator
    Alarm on indicator
    To set an alarm time
    1. In the Alarm Mode, hold down A until the hour setting
    starts to flash, which indicates the setting screen.
    This operation automatically turns on the alarm.
    2. Press C to move the flashing between the hour and
    3. While a setting is flashing, use B to increase it.
    Holding down B changes the setting at high speed.
    With the 12-hour format, set the time correctly as a.m.
    (no indicator) or p.m. (
    4. Press A to exit the setting screen.
    To stop the alarm tone after it starts to sound
    Press any button.
    To turn the Daily Alarm and Hourly Time Signal on and off
    In the Alarm Mode, press B to cycle through the on and
    off settings as shown below.
    Alarm On Indicator/Hourly Time Signal On Indicator
    Daily alarm
    Both offBoth on Hourly Time
    Signal only
    The alarm on ( ) indicator flashes while the alarm is
    The alarm on (
    ) indicator and Hourly Time Signal on
    ) indicator are displayed in all modes.
    To test the alarm
    In the Alarm Mode, hold down B to sound the alarm.
Casio LDF-52-1A

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Casio LDF-52-1A specifications

Brand Casio
Model LDF-52-1A
Product Watch
Language English
Filetype PDF
Technical details
Mechanism type -
Chronograph -
Chronometer -
Watch dial type LCD dial
Water resistant pressure 5 ATM
Water resistant depth 50 m
Shockproof -
Alarm function
LED backlight
Accuracy ±20 sec/month
Clock mode 12h/24h
Watch type Wrist watch
Calendar type Day
Watch case material Resin
Housing colour Black,Silver
Band main colour Black
Band material Resin
Watch glass type Resin
Case shape Rectangular
Watch dial main colour -
Product design -
Battery type CR1216
Battery life 3 year(s)
Number of batteries supported 1
Weight & dimensions
Width 23.6 mm
Depth 11.4 mm
Height 46.7 mm
Weight 25 g
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