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| Movement | Solar |
| Case material | Plastic |
| Crystal material | Mineral |
| Weight | 70 g |
| Waterproof | 200 m |
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Movement
Solar
Case material
Plastic
Crystal material
Mineral
Weight
70 g
Waterproof
200 m
The Casio G-Shock GW-7900B-1ER is a durable sports watch from the G-Rescue series, designed for use in demanding conditions both in the water and on land. It combines the legendary durability of G-Shock with practical features, solar power, and radio-controlled time, making it a reliable companion for everyday wear and outdoor activities.
The GW-7900B-1model features a robust case with distinctive four-point protection, which helps shield the watch’s most vulnerable parts from impacts. The large buttons are designed for easy operation even when wearing gloves.
The clear digital display shows the time, date, and day of the week in basic mode, and also offers functions such as world times, a stopwatch, a countdown timer, five daily alarms, and more. Many users will appreciate the hourly chime and the 12/24-hour time format. The watch’s calendar is fully automatic. For easy readability in the dark and in low-light conditions, the watch is equipped withLED backlighting. Water sports enthusiasts will also appreciate the tide indicator and moon phase indicator.
Other highlights of the watch includeTough Solar power, which recharges the watch’s battery using light, and the radio-controlledMulti Band 6 movement, which ensures automatic time synchronization via radio signals from six transmitters around the world. As a result, it offers high accuracy without the need for regular adjustments.
Both the case and strap are made of durable resin, and the display is protected by mineral glass. Water resistance up to 200 m allows for worry-free swimming and other water sports. With a case diameter of 50 mm, this model is considered a large watch.
The Casio G-Shock series is designed for anyone looking for an exceptionally durable watch with a wide range of features for outdoor activities, water sports, and everyday use. Of course, it features the legendary G-Shock construction, which is resistant to shocks, vibrations, and rough handling.
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Print size patterns
(For printing set - Scale: Default)
| Brand | Casio |
| Gender | Male |
| Style | Sports |
| Origin | Japanese |
| Guarantee | 5 years |
| Waterproof | 200 m |
| Weight | 70 g |
| Movement | Solar |
| Caliber | 3200 |
| Movement accuracy in seconds | ± 15 s / month (without signal reception) |
Power Reserve  |
9 months on rechargeable battery (with normal use without exposure to light) 26 months on rechargeable battery (in total darkness with the power save function on) |
| Stopwatch measurement accuracy |
1/100 sec. |
| Case size | 50 mm |
| Lug-to-lug: |
52,4 mm |
| Case height | 17,7 mm |
| Case shape | Round |
| Case material | Resin |
| Case color | Black |
| Crystal material | Mineral |
| Dial | Digital |
| Dial color | Black |
| Strap material | Resin |
| Buckle |
Tang Buckle |
| Strap color | Black |
| Alarm clock |
Yes |
| Date | Yes |
| Dual time |
Yes |
| Backlight | Yes |
| GPS / Radio Controlled | Radio |
| Stopwatch |
Yes |
| Day of the week indicator |
Yes |
| Power reserve indicator |
Yes |
| Functions | Date, Day of the week, Stopwatch, Alarm clock, Backlight, Radio controlled, Automatic calendar, Dual time / GMT, Moon phase, Power reserve indicator, World times |
| Accumulator |
Yes |
| Other functions | 12/24 mode, Automatic calendar, World times, High tide, Countdown, Moon phase, Tone button on / off, Lighting |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 200 CZK on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Men's best-selling watches Men's watches with stopwatch G-Shock Men's Japanese watch Men's sports watches Men's watches under 200 EUR Men's watches with date Men’s Watches Casio Men’s watches Casio G-Shock Men's black watches Men's solar watches Men's watches under 400 EUR Men's watches with alarm Men's radio-controlled watches Men's plastic watch Men's watches with GMT (second time zone) Watch gift for men Casio Men's watch with mineral glass
Casio, Japan is one of the best-selling watch brands in the world. The first watches from the Casia workshop were digital and at the same time the first in the world to display the date. Casio's digital watches are no longer popular today, although analog watches or watches with a combined time display already form a large part of the range.
Casio has made history with its range of super-durable G-Shock watches, which are equipped with a light but sufficiently durable construction (against falls of up to 10 m, shocks, vibrations, magnetic field and temperature fluctuations) and a great value for money. The glory of the G-Shock watch over time also required a lightweight women's version - Baby-G. The Casio Pro Trek or Casio Edifice outdoor watches are also very popular. Casio does not lag behind in modern technology either, as evidenced by models equipped with Bluetooth technology, the Tough Solar solar drive or the high-precision radio-controlled Wave Ceptor watch.
Helveti.eu is an authorized dealer and specialist of the Casio brand.
Manufacturer information: CASIO Europe GmbH, Casio-Platz 1 D-22848 Norderstedt, Germany / info@casio.de
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1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here:
