Casio G-Shock Classic - GA-2000-1A9ER

The Carbon Core Guard structure refers to the watch's innovative internal casing made from carbon fiber reinforced resin. This material is incredibly strong and light, providing superior protection against external impacts to the watch's delicate internal module.

The watch boasts 200-meter water resistance, which means it is suitable for swimming, snorkeling, and recreational diving. However, it is not designed for saturation diving. Always ensure buttons are not operated when submerged.

To set the time and date, typically you will enter the timekeeping mode and use the 'Adjust' button to select settings like hour, minute, year, and month. Use other buttons (e.g., 'Mode' or 'Search') to change the values. For detailed steps, always consult the specific module number's user manual.

Info needed: [Typical G-Shock batteries (CR2016 or similar) usually last 2-3 years, but this can vary based on LED light and alarm usage.]

The Hand Shift Feature temporarily moves the analog hands out of the way of the digital display. This is useful when the hands might obstruct your view of important digital information, such as the date, world time, or stopwatch readings.

Yes, the resin strap is typically replaceable. You can often find official G-Shock replacement straps or compatible third-party options. It is recommended to have a professional watch repair service perform the replacement to avoid damage.

To use world time, enter the World Time mode using the 'Mode' button. Then, use the 'Adjust' or 'Search' buttons to scroll through different city codes or time zones. The digital display will show the time for the selected city, and the analog hands may also adjust depending on the model.

This often occurs after a strong impact or battery change. Utilize the 'Hand Home Position Correction' feature. Refer to your user manual for the specific button sequence (usually involves holding down a button in timekeeping mode to enter adjustment, then adjusting hands to 12 o'clock manually).

Activate the LED Super Illuminator light by pressing the designated light button (typically the upper right or bottom button). Ensure the auto-light feature (if enabled) is not inadvertently turned off.

Ensure you are in the correct mode (Stopwatch or Timer). For the stopwatch, press the 'Start/Stop' button to stop it, then the 'Reset' button. For the timer, press 'Stop', then 'Reset'. If issues persist, a full module reset (refer to manual) might be necessary, though this is rare.