Module No. 3569

Viewing the Face in the Dark

The watch has a light that illuminates the face for viewing in the dark.

Note

Frequent use of illumination runs down the battery.

To illuminate the face manually

Press (L) to turn on illumination.

Illumination turns off automatically if an alarm starts to sound.

3569_05_LT_Intro

To illuminate the face when Auto Light is enabled

If Auto Light is enabled, face illumination will turn on automatically whenever the watch is positioned at an angle of 40 degrees or more.

Light_a

Important!

Auto Light may not operate properly when the watch is at a horizontal angle of 15 degrees or greater from horizontal as shown in the illustration below.

Light_b

Electro-static charge or magnetism can interfere with proper auto light operation. If this happens, try lowering your arm and then angle it towards your face again.

When moving the watch you may note a slight rattling sound. This is due to operation of the auto light switch, which determines the current orientation of the watch. It does not indicate malfunction.

Note

Auto Light is disabled when any one of the conditions below exists.

While an alarm, timer alert, or other beeper is sounding

Configuring the Auto Light Setting

  1. Enter the Timekeeping Mode.

    2. Navigating Between Modes

  2. Hold down (L) for at least three seconds to toggle Auto Light between enabled and disabled.

    3. [LT] is displayed while Auto Light is enabled.

    3569_06_LT_Intro

Note

After you enable Auto Light, it remains enabled for approximately six hours (unless you turn it off manually). After six hours, Auto Light becomes disabled automatically to conserve battery power.

Specifying the Illumination Duration

You can select either 1.5 seconds or three seconds as the illumination duration.

  1. Enter the Timekeeping Mode.

    2. Navigating Between Modes

  2. Hold down (A) for at least one second. Release the button when the seconds start to flash.

    3. 3569_SET_HomeCity_comon

  3. Press (C) nine times.

    4. [LT] appears on the display with [1] or [3] flashing.

  4. Press (D) to select an illumination duration.

    5. [LT1]: 1.5-second light

    [LT3]: 3-second light

    3569_07_LT_Intro

  5. Press (A) to complete the setting operation.

Note

While the setting is being configured, the watch will exit the setting operation automatically after about two or three minutes of non-operation.

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