G-Shock GA-100CF-1A9ER - Casio - G-Shock

Name: G-Shock GA-100CF-1A9ER - Casio - G-Shock
Brand: CASIO
SKU: cijr5sb45h
Availability: InStock

G-Shock brings you this Army inspired men's watch with a camouflage dial. Featuring auto-LED light...

Best current price£89.00from eBay

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Product Information

Full details

The Casio G-Shock GA-100CF-1A9ER is for individuals seeking an extremely durable and functional timepiece with a distinctive military-inspired design. Its robust construction ensures reliability in demanding environments, though its bold size might not suit all wrist preferences. This G-Shock model combines unparalleled resilience with practical features like world time, multiple alarms, and 200m water resistance, making it an ideal companion for outdoor adventures and daily wear.

All features

Series	G-Shock
Model Part Number	GA-100CF-1A9ER
Brand	CASIO

Extended Product Information

FAQs

How do I set the time on my GA-100CF-1A9ER?

To set the time, enter Timekeeping Mode and hold the `ADJUST` button. First, set your Home City Code, then proceed to set the DST status, 12/24-hour format, seconds, hour, minute, year, month, and day. Use the `MODE` button to cycle through settings and `FORWARD`/`REVERSE` to change values.

Is this watch suitable for scuba diving?

The GA-100CF-1A9ER has a 200-meter water resistance, which means it is suitable for recreational scuba diving, swimming, and snorkeling. However, always avoid operating the buttons while the watch is submerged to prevent water from entering the casing.

How long does the battery last and what type is it?

The watch uses one CR1220 battery, which typically lasts approximately 2 years. Actual battery life can vary depending on usage of features like the Auto-LED light and alarms.

Can I change the watch strap?

While technically possible, the GA-100CF-1A9ER uses a specific resin band designed for G-Shock models. It's recommended to use genuine Casio replacement bands to ensure proper fit and maintain the watch's intended durability and water resistance.

How do I activate the Auto-LED light feature?

To activate or deactivate the Auto-LED light, hold down the `REVERSE` (B) button for about three seconds while in the Timekeeping Mode. The 'A.EL' indicator will appear or disappear on the display to show its status.

Does this watch have a countdown timer?

Yes, the GA-100CF-1A9ER includes a countdown timer feature. You can set it from 1 minute up to 24 hours. This is useful for various timed activities, cooking, or managing tasks.

Troubleshooting

Digital display is blank or dim.

The battery might be low. Consider replacing the CR1220 battery. If recently exposed to extreme cold, allow the watch to return to room temperature.

Analog hands do not match digital time.

Enter Hand Setting Mode (refer to the full manual for exact button sequence) and manually align the analog hands with the digital time. Confirm the setting to synchronize them.

Watch time is inaccurate.

Check your Home City and DST (Daylight Saving Time) settings. Ensure they are correctly configured for your current location. Magnetic interference can sometimes cause minor deviations; if exposed to strong magnetic fields, reset the time.

Alarms are not sounding.

Ensure the alarm is enabled (look for the alarm indicator on the display, e.g., 'ALM' or 'ON'). Also, check if the hourly time signal is enabled, as it shares similar settings. The volume is fixed and cannot be adjusted.

Buttons are unresponsive or difficult to press.

Ensure the watch is not submerged in water when pressing buttons, as this can cause damage. If dirty, clean around the buttons with a soft brush and mild soapy water, then rinse and dry thoroughly. If the issue persists, professional inspection may be needed.

Pros and Cons

Pros

Extreme Durability: Unmatched shock, water, and magnetic resistance for peace of mind in any environment.
Feature-Rich: Packed with practical functions like world time, precise stopwatch, and multiple alarms.
Distinctive Style: Unique camouflage dial, gold accents, and robust black resin case offer a bold, military-inspired aesthetic.
Easy Operation: Over-sized, anti-slip buttons are designed for quick and sure operation, even with gloves on.
Excellent Value: Offers high performance and durability at an accessible price point.

Cons

Large Size: The 51 x 17mm case might feel bulky on smaller wrists.
Analog/Digital Readability: The reverse LCD display and busy dial design can sometimes make quick glance readability challenging for some users.
No Smart Features: Lacks modern connectivity features like Bluetooth or GPS found in smartwatches.
Battery Life: Uses a standard battery (CR1220) which typically lasts about 2 years, requiring eventual replacement.

Setup, Compatibility & Care

Setup

Setting Home City: In Timekeeping Mode, hold the `ADJUST` button until the city code starts to flash. Use `FORWARD` and `REVERSE` buttons to select your home city code. Press `ADJUST` to confirm.
Setting Time & Date: After setting the home city, you can adjust daylight saving time (DST), 12/24-hour format, seconds, hour, minute, year, month, and day in sequence. Use the `MODE` button to cycle through settings and `FORWARD`/`REVERSE` to change values. Press `ADJUST` to exit.
Analog Hand Adjustment: If the analog hands don't match the digital time, enter Hand Setting Mode (usually by holding a specific button from Timekeeping Mode, refer to the full manual for exact sequence). Use the `FORWARD`/`REVERSE` buttons to align the hands, then confirm with `ADJUST`.
Setting Alarms: Enter Alarm Mode, select an alarm (AL1-AL5, SNZ), and use `ADJUST` to enable setting. Set the hour and minute using `FORWARD`/`REVERSE`. Press `ADJUST` to confirm.

Compatibility

This watch features an adjustable black resin strap designed to fit a wide range of adult wrist sizes. Its robust build and size are generally well-suited for medium to large wrists. While highly durable, its 51 x 17mm dimensions might feel substantial on very slender wrists.

Care

Cleaning: Regularly wipe the watch case and band with a soft, damp cloth to remove dirt and sweat. For stubborn grime, a mild soap solution can be used, followed by rinsing with clean water and thorough drying.
Avoid Chemicals: Do not expose the watch to gasoline, cleaning solvents, aerosols, adhesives, paints, or strong chemicals as they can damage the resin case and band.
Water Exposure: After exposure to saltwater, rinse the watch thoroughly with fresh water and dry it completely. Do not operate buttons underwater to prevent water ingress.
Temperature Extremes: Avoid prolonged exposure to extremely high or low temperatures, as this can affect battery life and component integrity.
Battery Replacement: When the display becomes dim, or features stop working correctly, it's time to replace the CR1220 battery. It is recommended to have battery replacement done by a qualified watch technician to ensure water resistance is maintained.