1. Introduction
Welcome to the instruction manual for your Casio G-Shock G-Lide GBX100-2 Surf Watch. This timepiece is designed for water sports enthusiasts, offering advanced features for surfing and daily activity tracking. It combines the renowned G-Shock durability with smart connectivity to enhance your experience.
Key features include tide graphs, moon data, sunrise/sunset times for over 3,300 global locations, 200-meter water resistance, smartphone connectivity via the G-SHOCK MOVE app, and comprehensive training and fitness tracking. The high-resolution Memory in Pixel (MIP) LCD ensures clear readability in various conditions.

Image 1.1: The Casio G-Shock G-Lide GBX100-2 watch, showcasing its teal resin band and metal bezel, resting on a yellow rope near water.
2. Setup
2.1 Initial Power On and Time Setting
Upon first use, the watch will prompt you to set the initial time and date. Follow the on-screen instructions or proceed to connect with the G-SHOCK MOVE app for automatic synchronization.
2.2 Smartphone Connectivity (G-SHOCK MOVE App)
- Download the G-SHOCK MOVE app from your smartphone's app store.
- Enable Bluetooth on your smartphone.
- On the watch, navigate to the CONNECT mode (refer to the watch's display for button indications).
- Open the G-SHOCK MOVE app and follow the pairing instructions.
- Once connected, the watch will automatically update its time, date, and location-specific data (tide, moon, sunrise/sunset).
2.3 Battery Information
The GBX100-2 requires 1 Lithium Metal battery. The watch is designed for a 2-year battery life under normal usage conditions.

Image 2.1: The watch display highlighting the "2 Year Battery Life" feature, indicating its energy efficiency.
3. Operating the Watch
3.1 Basic Navigation
Use the MODE button (left side) to cycle through different watch modes: Timekeeping, Tide/Moon Data, Training, Stopwatch, Timer, Alarm, and Connection. Use the DISP button (left side) to change display information within a mode. The START and LAP buttons (right side) are used for starting/stopping functions and recording laps, respectively.
3.2 Tide and Moon Data
The G-Lide GBX100-2 provides detailed tide graphs and moon phase data for over 3,300 surf spots worldwide.
- Accessing Data: Navigate to the TIDE/MOON mode.
- Location Selection: Use the G-SHOCK MOVE app to select your desired surf spot. The watch will then display tide patterns, high/low tide times and levels, and moon age for that location.

Image 3.1: The watch display showing a detailed tide graph, including high/low tide times and levels, for a selected location.

Image 3.2: The watch displaying moon phase data, indicating the current lunar cycle.
3.3 Training and Fitness Tracking
The watch tracks various fitness metrics, which can be viewed on the watch or in the G-SHOCK MOVE app.
- Metrics: Running distance, speed, pace, laps, cadence, and calories burned.
- Features: Auto/manual lap timer, interval training mode, and target alerts.
- Starting a Training Session: Navigate to the TRAINING mode and press the START button.
3.4 Display and Backlight
The high-resolution Memory in Pixel (MIP) LCD provides clear readings. The watch features a powerful LED backlight for visibility in low-light conditions.
- Activating Backlight: Press the top-left button (usually labeled LIGHT or indicated by a lightbulb icon).
- Backlight Duration: Settings for backlight duration can be adjusted via the G-SHOCK MOVE app or watch settings.

Image 3.3: The watch display illuminated by its powerful LED backlight, ensuring readability in dark environments.
4. Maintenance
4.1 Cleaning Your Watch
- Wipe the watch with a soft, dry cloth.
- For stubborn dirt, use a soft cloth dampened with water and a mild neutral detergent.
- After exposure to saltwater, rinse the watch thoroughly with fresh water and dry it completely.
- Avoid using volatile agents like thinner, benzine, alcohol, or chemical cleaning sprays, as they may damage the resin components.
4.2 Water Resistance
The GBX100-2 features 200-meter water resistance. This makes it suitable for swimming, snorkeling, and surfing.
- Do not operate watch buttons while submerged in water or when the watch is wet.
- Avoid exposing the watch to hot water or steam (e.g., hot showers, saunas), as this can compromise water resistance.
- Have the gaskets checked periodically (e.g., every 2-3 years) by an authorized service center to ensure water resistance integrity.
4.3 Band Care
The soft bio-based urethane band is designed for comfort and durability. Clean it regularly to prevent accumulation of sweat and dirt, which can cause irritation or degradation.
5. Troubleshooting
- Watch not connecting to smartphone:
- Ensure Bluetooth is enabled on your smartphone.
- Confirm the G-SHOCK MOVE app is open and running.
- Check if the watch is in CONNECT mode.
- Restart both the watch and your smartphone, then attempt pairing again.
- Incorrect time/date:
- Connect the watch to the G-SHOCK MOVE app to automatically synchronize time.
- Manually adjust time and date if automatic synchronization fails (refer to the full user manual for detailed steps).
- Display is dim or unreadable:
- Activate the LED backlight.
- Ensure the watch is not in a power-saving mode that dims the display.
- If the display remains dim, the battery may be low and require replacement.
- Tide data not updating:
- Ensure the watch is connected to the G-SHOCK MOVE app and has a stable internet connection to download location data.
- Verify that the correct surf spot is selected in the app.
6. Specifications
| Model Number | GBX100-2 |
| Dimensions | 8 x 5 x 5 inches (Product); 50.9mm case diameter (Watch) |
| Weight | 7.2 ounces |
| Water Resistance | 200 meters (20 BAR) |
| Battery Type | 1 Lithium Metal battery |
| Display Type | Memory in Pixel (MIP) LCD |
| Connectivity | Bluetooth (Smartphone Link) |
| Manufacturer | Casio |
7. Warranty and Support
Your Casio G-Shock G-Lide GBX100-2 is covered by a manufacturer's warranty. For detailed warranty information, including terms, conditions, and duration, please refer to the warranty card included with your product or visit the official Casio website.
For technical support, service, or inquiries regarding your watch, please contact Casio customer service or visit an authorized Casio service center. Contact information can typically be found on the official Casio website or in the documentation provided with your watch.
Official Casio Website: www.casio.com





