Casio PRW-6900YL-5 Pro Trek Watch Instruction Manual

1. Introduction

This manual provides detailed instructions for the operation and maintenance of your Casio PRW-6900YL-5 Pro Trek watch. This timepiece is equipped with advanced features designed for outdoor enthusiasts, including Tough Solar power, Multi-Band 6 atomic timekeeping, 100-meter water resistance, and Triple Sensor technology.

Key features include:

• Tough Solar Movement: Recharges the watch using light exposure.
• Multi-Band 6 Atomic Timekeeping: Automatic time adjustments for accuracy across 29 time zones.
• Triple Sensor Technology: Integrated Altimeter, Barometer, Compass, and Thermometer.
• 1/100-Second Stopwatch: Measures elapsed time up to 23 hours, 59 minutes, 59 seconds.
• 60-Minute Countdown Timer: For precise timing.
• World Time: Displays current time in 29 cities (29 time zones).
• 100M Water Resistance: Suitable for swimming and snorkeling.

2. Setup

2.1 Initial Charging

Your watch is powered by a solar cell and a rechargeable battery. Before initial use, expose the watch face to bright light for several hours to ensure a full charge. Avoid blocking the watch face from light exposure during daily wear to maintain optimal battery levels.

2.2 Time Calibration (Atomic Timekeeping)

The PRW-6900YL-5 features Multi-Band 6 technology, allowing it to receive time calibration signals from six transmission stations around the world. This ensures highly accurate timekeeping.

• The watch attempts to receive a calibration signal automatically up to six times a day.
• For best reception, place the watch near a window at night.
• Manual reception can also be initiated. Refer to the 'Timekeeping Mode' section for detailed steps.

2.3 Setting Your Home City

Setting your Home City is crucial for correct time calibration and World Time display. This setting also affects the accuracy of sensor readings that rely on location data.

1. In Timekeeping Mode, press and hold the ADJUST button (usually top-left) until the city code starts to flash.
2. Use the COMPASS (top-right) and ALTI (bottom-right) buttons to scroll through city codes. Select the city code closest to your current location.
3. Press the ADJUST button again to confirm and exit the setting mode.

3. Operating Modes and Functions

The watch operates in various modes, accessible via the MODE button (bottom-left). The current mode is typically indicated on the digital display.

3.1 Timekeeping Mode

This is the default mode, displaying the current time, date, and day of the week. The analog hands show the current time, while the digital display can show various information depending on settings.

• To adjust time/date manually: Press and hold ADJUST, then use COMPASS and ALTI buttons to change settings.
• To initiate manual time calibration reception: In Timekeeping Mode, press and hold the COMPASS button for several seconds until 'RC!' appears.

3.2 Compass Mode

The built-in digital compass measures and displays direction.

1. From Timekeeping Mode, press the COMPASS button to enter Compass Mode.
2. Hold the watch level and away from magnetic interference. The second hand will point North, and the digital display will show the direction and bearing angle.
3. To exit, press the MODE button.

3.3 Altimeter Mode

Measures relative altitude based on atmospheric pressure.

1. From Timekeeping Mode, press the ALTI button to enter Altimeter Mode.
2. The watch will display the current altitude.
3. Altitude readings are relative and can be affected by changes in atmospheric pressure. Calibrate the altimeter regularly using a known altitude reference.

3.4 Barometer/Thermometer Mode

Measures atmospheric pressure and temperature.

1. From Timekeeping Mode, press the BARO button (top-right, usually labeled 'BARO/TEMP') to enter Barometer/Thermometer Mode.
2. The digital display will show atmospheric pressure and temperature.
3. For accurate temperature readings, remove the watch from your wrist for at least 20-30 minutes to avoid body heat interference.

3.5 Stopwatch Mode

Measures elapsed time, split times, and 1st-2nd place times.

1. Press the MODE button repeatedly until 'STW' or 'STOP' appears on the digital display.
2. Press the START/STOP button (usually top-right) to start and stop the stopwatch.
3. Press the RESET button (usually bottom-right) to reset to zero.

3.6 Countdown Timer Mode

Counts down from a specified time, up to 60 minutes.

1. Press the MODE button repeatedly until 'TMR' or 'TIMER' appears.
2. To set the countdown time, press and hold the ADJUST button. Use the COMPASS and ALTI buttons to set the desired time.
3. Press the START/STOP button to start and stop the countdown. An alarm will sound when the timer reaches zero.

3.7 World Time Mode

Displays the current time in 29 different time zones (29 cities).

1. Press the MODE button repeatedly until 'WT' or 'WORLD TIME' appears.
2. Use the COMPASS and ALTI buttons to scroll through different city codes and view their current times.

3.8 Alarm Mode

Set up to 5 daily alarms and an hourly time signal.

1. Press the MODE button repeatedly until 'ALM' or 'ALARM' appears.
2. Use the COMPASS and ALTI buttons to select an alarm number (AL1-AL5) or the hourly time signal (SIG).
3. Press and hold the ADJUST button to set the alarm time.

3.9 LED Light

The watch features a full auto dual-LED light for illumination in low-light conditions.

• Press the LIGHT button (usually top-left, or a dedicated button) to illuminate the display.
• The light duration can be set to 1.5 or 3 seconds.
• Auto Light feature can be enabled, which illuminates the display when the watch is tilted towards your face.

4. Maintenance and Care

4.1 Water Resistance

The PRW-6900YL-5 is 100-meter water resistant. This means it is suitable for everyday use, swimming, and snorkeling. It is not suitable for scuba diving.

• Do not operate buttons or the crown while the watch is wet or submerged.
• After exposure to saltwater, rinse the watch with fresh water and wipe it dry.

4.2 Cleaning

Regular cleaning helps maintain the watch's appearance and functionality.

• Wipe the watch case and band with a soft, dry cloth.
• For stubborn dirt, use a soft brush and mild soap solution, then rinse thoroughly and dry.
• Avoid using chemical cleaners or solvents, as they can damage the watch materials.

4.3 Battery (Tough Solar)

The watch's rechargeable battery is powered by light. Ensure the watch receives regular light exposure to maintain a full charge.

• Avoid storing the watch in dark places for extended periods.
• If the battery level is low (indicated by 'CHG' or 'LOW' on the display), expose the watch to bright light immediately.

5. Troubleshooting

This section addresses common issues you might encounter with your PRW-6900YL-5 watch.

6. Specifications

Technical details for the Casio PRW-6900YL-5 Pro Trek watch.

• Model Number: PRW-6900YL-5
• Brand: Casio
• Movement: Tough Solar (Quartz)
• Timekeeping: Multi-Band 6 Atomic Timekeeping
• Water Resistance: 100 meters (10 ATM)
• Sensors: Digital Compass, Barometer, Altimeter, Thermometer
• Stopwatch: 1/100-second, measuring capacity 23:59'59.99''
• Countdown Timer: Measuring unit 1 second, countdown range 60 minutes
• Alarms: 5 daily alarms, hourly time signal
• World Time: 29 time zones (29 cities + UTC)
• Light: Full auto dual-LED light with afterglow (1.5/3 seconds)
• Case Dimensions: Approximately 5.2 x 5 x 3.27 inches (package dimensions, watch dimensions may vary slightly)
• Weight: Approximately 2.29 ounces
• Case Material: Biomass Resin
• Band Material: Leather/Resin (Beige)

7. Warranty and Support

For detailed warranty information, please refer to the warranty card included with your product or visit the official Casio website. Casio typically provides a limited warranty covering manufacturing defects.

For product support, service, or to inquire about replacement parts, please contact Casio customer service directly through their official website or authorized service centers. Keep your proof of purchase for warranty claims.