It runs thanks to a precise quartz movement, which is powered by a battery. The case is made of black plastic which is very light and resistant to small scratches and impacts.The orange strap is made of high-quality silicone and that's why it's light, durable and very comfortable to use. The easy-to-read black dial is covered with a reliable mineral crystal, which is resistant to impacts and scratches. Due to a water resistance of 200 meters, the watch can be worn during swimming and freediving at greater depths. Casio G-SHOCK GA-1000-4AER is an authentic watch from an authorised dealer. The product is covered by the manufacturer's warranty and is packed in the original box.
Functions
Neon-Illuminator
An LED inside the watch emits ultraviolet light. The watch face and hands are coated with fluorescent material, providing a special kind of light to accentuate the hands and index.
Shock-resistant
Shock-resistant construction protects against impact and vibration.
Neo-display
A luminous coating provides long-term illumination in the dark after only a short exposure to light.
Thermometer (-10°C / +60°C)
A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C).
Digital-compass
A built-in direction sensor detecs the magnetic north.
World time function
Displays the current time in major cities and specific areas around the world.
Stopwatch function - 1/100 sec. - 24 hours
Accuracy of measurement up to 1/100 of a second, measuring range up to 24 hours.
Timer - 1/1 min. - 1 hour
For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. The time can be set to the nearest minute and up to 1 hour in advance. This model has three independent timers - ideal for people who need to take medicines every day or those who do interval training.
5 daily alarms
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments.
Snooze feature
Each time you stop the alarm, it sounds again after a few minutes.
Button tones on/off
The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.
Automatic calendar with Date, Day and Month
Once set, the automatic calendar always displays the correct date.
12/24-hour timekeeping
Times can be displayed in either a 12-hour or 24-hour format.
Mineral glass
The tough mineral glass resists damages.
Stainless steel resin case
The case of the watch is made of stainless steel and resin.
Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
Folding clasp
The watch has a folding clasp.
2 Years - 1 Battery
The battery supplies the watch with sufficient energy for approx. two years.
Water resistance classification (20 bar)
Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810.
What’s in the box?
3-year warranty
User manual
Warranty card
Casio box
Reviews about G-SHOCK Casio Gravity Defier GA-1000-4AER (8)
The product matches the description perfectly, and delivery was fast.
Ogór
4/26/26
100%
I ordered this model and I'm happy with it. Great email communication with the store. Everything's great!
mustrum
2/11/26
100%
I really like this watch with its reliable Japanese quartz movement. You can see the attention to detail and the quality of craftsmanship. I wear it every day, and it works perfectly. The purchase went smoothly, and the product meets my expectations. I recommend this model to discerning men.
jurek X.
1/15/26
100%
I bought the watch in Malaga in 2013; I added a black Kevlar strap later. It's been working for all these years and is still in good condition.
Daro
1/1/26
100%
I bought this G-SHOCK watch for myself and I’m really happy with it. The model draws inspiration from classic Casio designs, which I liked right away. It has a cool, youthful style and a durable build. This combination means I wear it every day without worrying about it getting damaged. I ordered it from an authorized watch store, which gives me peace of mind. The service was great; everything went quickly and smoothly. The product arrived without any delays, in perfect condition. Overall, I’m very happy with this purchase and recommend this watch to anyone looking for something durable and stylish. It’s a great buy—truly worth it!
Bogdanj.
12/12/25
100%
Fast and efficient—I highly recommend it!
LesioQ
12/4/25
100%
I bought a G-SHOCK watch as a gift for my sister's 30th birthday. The quartz movement works flawlessly. It was a perfect choice for a special gift. I'm very happy with it.
Ania BZ.
11/6/25
100%
I gave this watch to my brother for his 40th birthday. It’s exceptionally sturdy and modern, which he really liked. It looks durable and practical for everyday use. The purchase went smoothly, and the watch arrived in perfect condition. It’s a great gift choice for a loved one. I definitely recommend it!
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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