Franck B. 21/01/2025
| Reference Ocarat | #90306 |
| Reference | GA-B2100C-9AER |
| Brand | Casio G-Shock |
| Product Type | Watch |
| Gender | Men |
| Color | Black Yellow |
| Material | Carbon Synthetic |
| Material Quality | Carbon fiber Resin |
| Warranty | 2 Years |
| Length (in mm) | 48,50 |
| Width (in mm) | 45,50 |
| Thickness (in mm) | 11,90 |
| Manufacturing | Japan |
| Warranty Type | International |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Round |
| Case Weight (in g) | 52,00 |
| Bezel | Fixed Resin |
| Watch Case Back | Case back secured by screws |
| Crystal Shape | Flat |
| Glass Quality | Mineral Crystal |
| Buttons | 4 Push Buttons |
| Water Resistance (in ATM) | 20 |
| Movements | Solar |
| Calendar and Time | Dates Hours Minutes |
| Chronograph Function | Yes |
| Timekeeping and Measurement | 1/100th of a second chronometer Chronometer Chronometer - 24 hours Countdown |
| Alarm Complications | 12-Hour Alarm 24h alarm |
| Display Type | Analog (hands) Digital |
| Display Specifications | Arabic Numerals Indices and railroad track Super Illuminator |
| Techniques and Mechanics | Multifunctions: see description |
| Bracelet Material | Resin |
| Strap Color | Yellow |
| Water Resistant | Yes |
| Watch Clasp | Tang Buckle |
| Lug Width (in mm) | Special - Custom Made |
| Activities | Swimming / Diving Technical Adventure |
| Connectivity and Display | Bluetooth |
The new Casio G-Shock GA-B2100C-9AER is sure to turn heads with its bold yellow design. The case is crafted from carbon fiber-reinforced resin in a striking yellow - a vibrant, energetic color perfect for your active lifestyle. With 20 ATM water resistance, you can swim and even freedive while wearing it, meeting the ISO 22810 standard. This solar-powered connected model gives you access to a wealth of features via its 4 pushers positioned on either side of the case. The case itself is impressively lightweight at just 52 grams. Dimensions are 45.5 mm wide, 48.6 mm tall, and 11.9 mm thick - proportions that sit perfectly on a men's wrist. The dial is protected by a mineral crystal that guards against scratches and impacts. The case back is secured with screws.
This Casio G-Shock features a round dial with a black background packed with functions you'll discover as you use it. It opens with a classic analog display - two hands in grey and white showing hours and minutes, pointing to twelve grey baton indices. A subtle minute track in black adds precision to the display. A digital display sits in the lower-right section of the dial. The Super Illuminator function lights up the dial for easy reading at any time of day. Finally, the brand signs the dial at 12 o'clock.
- Bluetooth® Smart: the watch is equipped with energy-efficient Bluetooth® technology, enabling data exchange with a single button press. The Bluetooth® function wirelessly connects the watch to a smartphone, unlocking a wide range of highly practical features.
- Smartphone Time: when the watch is paired with a smartphone, the time is set automatically and displays the current local time anywhere in the world.
- Super Illuminator: a single button press lights up the dial in vivid, on-trend colors.
- Shock Resistance: the shock-resistant structure protects the watch against impacts and vibrations.
- Neobrite Coating: the hands and/or indices feature a fluorescent coating that keeps glowing in the dark after the watch has been exposed to a light source.
- World Time Function: the world time function displays the time across 29 time zones and major cities around the globe.
- 1/100-Second Stopwatch - 24 Hours: measures elapsed time to 1/100th-second precision over a maximum duration of 24 hours. An audible beep confirms the start and stop of the stopwatch.
- Countdown Timers - 1/1 sec - 24 Hours: for those who love precision: countdown timers remind you of important or recurring events by sounding an alarm at the set date and time. The countdown can be programmed in seconds, up to 24 hours in advance.
- 5 Daily Alarms: an audible alarm reminds you of your daily commitments at the programmed time. This model features five independent alarms, giving you the flexibility to stay on top of all your important appointments.
- Button Beep On/Off: the button beep can be disabled using the mode button. Once turned off, no beep sounds when switching between functions. However, any programmed alarms or countdown timers remain active after the button beep is disabled.
- Hand Shift Function: this function moves the hands out of the way when they obscure the time, date, or stopwatch display.
- Phone Finder: misplaced your smartphone? Simply press one of the watch's buttons to trigger an alarm on your phone.
- Day of the Week Display in Multiple Languages: the day can be displayed in your choice of several languages.
- Auto Calendar: once set, the auto calendar always displays the correct date.
- 12/24-Hour Time Format: switch between 12-hour and 24-hour time display.
Powered by a solar movement, the watch runs with exceptional precision. The solar cells provide an autonomous, eco-friendly energy source, with any surplus power stored in a rechargeable battery.
Made from resin, this strap delivers outstanding long-term durability - especially during sports activities. It's also highly comfortable thanks to its flexibility, making it a great everyday companion. In yellow to match the case, it's a bold, on-trend choice. It fastens with a black pin buckle.
This model offers a water resistance of 20 atmospheres, equivalent to 200 meters. A timepiece that can truly keep up with your deepest aquatic adventures! Designed for freediving, it handles high-pressure washers without breaking a sweat. Showering, bathing, lap swimming, and freediving are all fair game. That said, for scuba diving with tanks, we recommend a timepiece with a higher water resistance rating. Also, avoid operating the crown or pushers while submerged to protect the movement's integrity.



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Franck B. 21/01/2025
Yellow Solar Connected G-Shock Watch GA-B2100C-9AER
(Ref. 90306)