Casio G-SHOCK-GW-B5600 user manual

G-Shocks have Bluetooth for several reasons:
1. Smartphone Link: G-Shock watches with Bluetooth can connect to a smartphone to access a variety of convenient features.
2. Automatic Time Adjustment: The watch can synchronize with the time information from a smartphone, ensuring the most accurate timekeeping no matter where you are in the world.
3. World Time: The world time of over 300 cities can be displayed and easily switched with a smartphone app.
4. Alarm/Timer Settings: The alarm/timer settings can be customized through your smartphone.
5. Phone Finder: If you misplace your phone, you can use your G-Shock to activate an alarm on your phone.
6. Notification Alerts: Some models can display alerts for incoming calls, emails, and messages.
7. Step Tracker: Some models may also offer fitness tracking features, like a step counter.
These are just a few reasons why G-Shock watches come equipped with Bluetooth. The exact features can vary depending upon the specific model of the G-Shock.

The C button on a Casio G-Shock watch, such as the GW-B5600, is typically used as a mode or function button. Depending on the watch model, pressing the C button may allow you to cycle through different modes, such as timekeeping, stopwatch, countdown timer, alarm, world time, or settings. It is best to refer to the specific user manual for your G-Shock model to understand the exact functionalities of the C button.