Introduction
Welcome to your new Casio SGW-450H-2BCF Twin Sensor Analog-Digital Watch. This timepiece combines a classic analog display with advanced digital features, including a Twin Sensor for altimeter and barometer/thermometer readings. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your watch.
Image: Front view of the Casio SGW-450H-2BCF Twin Sensor Analog-Digital Watch, showcasing its black resin band and multi-function dial.
Key Features
- Analog-Digital Display: Combines traditional watch hands with a clear digital readout.
- Twin Sensor: Integrated altimeter for altitude measurement and barometer/thermometer for atmospheric pressure and temperature readings.
- Water Resistance: Rated for 100 meters (330 feet), suitable for swimming and snorkeling.
- World Time: Displays current time in 48 cities across 31 time zones.
- Stopwatch: 1/100-second stopwatch function.
- Countdown Timer: For various timing needs.
- Daily Alarms: Up to 5 independent daily alarms.
- LED Backlight: Provides illumination for easy reading in low-light conditions.
Initial Setup
Setting the Time and Date
- In Timekeeping Mode, hold down the A button (top left) until the city code starts to flash.
- Use the B button (top right) and D button (bottom right) to select your home city code.
- Press the C button (bottom left) to cycle through the settings: DST (Daylight Saving Time), 12/24-hour format, seconds, hour, minute, year, month, day.
- Use the B and D buttons to adjust the flashing value.
- Press the A button to exit the setting mode.
Analog Hand Adjustment
If the analog hands do not match the digital time, perform the following steps:
- In Timekeeping Mode, hold down the D button until the hands start to move.
- Press D again to advance the hands by 20 seconds. Hold D to advance rapidly.
- Press the A button to synchronize the hands with the digital time.
Operating Modes
Your watch has several operating modes. Press the C button to cycle through them.
Image: The Casio SGW-450H-2BCF watch displayed on a wrist, illustrating its size and fit during use.
Timekeeping Mode
This is the default mode, displaying the current time, date, and day of the week.
Altimeter Mode
Measures and displays current altitude. Press the B button to enter Altimeter Mode.
- Calibration: For accurate readings, calibrate the altimeter regularly using a known altitude reference.
Barometer/Thermometer Mode
Measures and displays atmospheric pressure and temperature. Press the D button to enter Barometer/Thermometer Mode.
- Temperature Measurement: For accurate temperature readings, remove the watch from your wrist for at least 20-30 minutes to avoid body heat interference.
Stopwatch Mode
Measures elapsed time. Press C to navigate to Stopwatch Mode.
- Start/Stop: Press B.
- Reset: Press D while stopped.
Alarm Mode
Set up to 5 daily alarms. Press C to navigate to Alarm Mode.
- Set Alarm: Use A to select alarm number, B/D to adjust time.
- Turn On/Off: Press B to toggle.
World Time Mode
View the current time in 48 cities (31 time zones). Press C to navigate to World Time Mode.
- Change City: Use B and D.
Maintenance and Care
Water Resistance
This watch is water resistant to 100 meters (330 feet). It is suitable for swimming and snorkeling, but not for scuba diving. Do not operate buttons while the watch is wet or submerged to prevent water ingress.
Cleaning
Wipe the watch with a soft, dry cloth. For resin bands, use a mild soap solution and rinse thoroughly with fresh water, then dry completely. Avoid harsh chemicals, solvents, or abrasive cleaners, as these can damage the watch's finish or materials.
Battery Replacement
The watch uses 1 Lithium Metal battery. Battery life varies depending on usage of features like the backlight and sensors. When the display becomes dim or functions become erratic, it indicates a low battery. Replace the battery at an authorized Casio service center to ensure proper sealing and functionality.
Troubleshooting
Incorrect Time Display
If the analog hands do not match the digital time, perform the analog hand adjustment procedure described in the "Initial Setup" section.
Inaccurate Sensor Readings
- Altimeter: Calibrate the altimeter frequently using a known altitude. Atmospheric pressure changes can affect readings, so re-calibration is recommended before critical measurements.
- Thermometer: Ensure the watch is removed from your wrist for accurate temperature measurement, as body heat significantly impacts readings. Allow 20-30 minutes for the watch to acclimate to ambient temperature.
- Barometer: Sudden weather changes can cause rapid fluctuations. Ensure proper calibration and understand that readings reflect local atmospheric pressure.
Display is Blank or Dim
This may indicate a low battery. Replace the battery at an authorized service center. If the issue persists after battery replacement, contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | SGW450H-2B |
| Display Type | Analog-Digital |
| Movement Type | Quartz |
| Case Diameter | 51.9 Millimetres |
| Case Thickness | 14.9 Millimetres |
| Band Material | Resin |
| Band Colour | Black |
| Water Resistance Depth | 100 meters (330 Feet) |
| Crystal Material | Mineral |
| Battery Type | 1 Lithium Metal (included) |
| Product Dimensions | 10.67 x 8.13 x 5.84 cm; 160 g |
Warranty and Support
Your Casio SGW-450H-2BCF watch comes with a manufacturer's warranty. For specific warranty details, duration, and terms, please refer to the warranty card included with your original purchase. In most cases, warranty claims and service should be directed to the seller of record or an authorized Casio service center.
For further assistance, technical support, or to locate an authorized service center, please visit the official Casio website or contact their customer service department. Keep your proof of purchase for any warranty-related inquiries.
Image: The product packaging box for the Casio watch, typically containing the watch, manual, and warranty information.
