G-Shock GA-140-4AER - Watch CASIO - Free user manual and instructions
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| Product Type | Watch |
| Brand | Casio |
| Model | G-Shock GA-140-4AER |
| Series | G-Shock |
| Dimensions (H x W x D) | Approx. 53.2 mm x 50.0 mm x 18.7 mm |
| Weight | Approx. 72 g |
| Case Material | Resin |
| Band Material | Resin |
| Display Type | Digital |
| Water Resistance | 200 meters (20 bar) |
| Shock Resistance | Yes |
| Power Source | CR2016 battery |
| Battery Life | Approx. 2 years |
| Functions | Stopwatch, countdown timer, alarm, world time, auto LED light, calendar |
| Accuracy | ±15 seconds per month |
| Care & Cleaning | Wipe with a soft cloth; avoid solvents or abrasives |
| Safety | Use only genuine Casio batteries; avoid contact with magnets |
| Spare Parts & Repairability | Battery replacement by authorized service center; other parts not user-serviceable |
| General Information | G-Shock series offers durability and multifunctionality for active lifestyles |
Frequently Asked Questions - G-Shock GA-140-4AER CASIO
Is the Casio G-Shock GA-140-4AER water-resistant?
Yes, it is water-resistant to 200 meters (20 bar), suitable for swimming and snorkeling but not for scuba diving.
How do I set the time on the GA-140-4AER?
Press and hold the Adjust button (upper left) until the seconds flash. Use the Mode button to move between settings and the Search button to change values. Press Adjust to exit.
What type of battery does this watch use?
It uses a CR2016 lithium coin battery. Battery life is approximately 2 years under normal use.
How do I replace the battery?
Battery replacement should be done by a qualified technician or authorized Casio service center to maintain water resistance. Do not attempt yourself.
Does the watch have an alarm?
Yes, it has a daily alarm and a countdown timer alarm. You can set one daily alarm with snooze.
How do I use the stopwatch?
Press the Mode button until you reach the stopwatch function. Press the Start/Stop button (upper right) to start/stop, and the Reset button (lower right) to reset.
What is the auto LED light?
The auto light illuminates the display when you tilt the watch towards your face in low light. It can be enabled or disabled in the settings.
How do I set the world time?
Press the Mode button repeatedly to enter World Time mode. Use the Search button to scroll through cities. To switch between standard and daylight saving, press the Adjust button.
Can I swim with this watch?
Yes, it is rated for 200 meters, so swimming and snorkeling are fine. However, avoid pressing buttons underwater to prevent damage.
How do I clean the watch?
Wipe the case and band with a soft, dry cloth. For tougher dirt, use a mild soap solution and rinse with fresh water. Avoid using solvents or abrasive cleaners.
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