Casio G-Shock GA-B2100-3A Tough Solar Bluetooth Analog-Digital Green Resin Watch
- Sale price
- R 3,529
- List price
- R 4,699
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The Casio G-Shock GA-B2100-3A redefines rugged sophistication with its earth-toned aesthetic and cutting-edge technology. This round-cased timepiece features a distinctive military green resin construction throughout both case and band, paired with a multi-layered dark grey dial that creates striking visual depth. The octagonal bezel design pays homage to the iconic original G-Shock silhouette while integrating modern Carbon Core Guard structure for enhanced shock resistance without adding bulk.
Powered by Tough Solar technology, this watch harnesses light energy to eliminate battery replacement concerns, while Bluetooth connectivity enables seamless smartphone pairing for automatic time adjustment and enhanced functionality. The analog-digital hybrid display combines traditional hands with digital sub-windows, providing instant access to world time, stopwatch, timer, and alarm features. At 45.4mm in diameter with an 11.9mm profile, the case strikes an ideal balance between wrist presence and everyday wearability, weighing just 52 grams despite its robust protective capabilities.
At Cassims & Co., we proudly stock the complete range of CASIO watches, bringing legendary G-Shock durability to South African adventurers and urban explorers alike. This GA-B2100-3A exemplifies the brand's commitment to relentless innovation—combining solar charging efficiency with smartphone integration while maintaining the shock resistance and 200-metre water resistance that have made G-Shock a global icon.
The green resin band features the signature ribbed texture for secure grip and all-day comfort, while the mineral crystal protects the dial from scratches during demanding activities. Whether you're navigating Johannesburg's urban landscape or exploring the great outdoors, this watch delivers unwavering performance. Visit us at our Mall of the South boutique to experience the GA-B2100-3A's distinctive aesthetic firsthand, and discover why G-Shock remains the ultimate choice for those who demand both style and substance. Our team provides comprehensive support including battery servicing when eventually needed and strap replacements, with nationwide delivery available across South Africa for your convenience.
Specifications
- Brand: Casio
- Collection: G-Shock
- Model Reference: GA-B2100-3A
- Case Shape: Round with octagonal bezel
- Case Diameter: 45.4mm
- Case Thickness: 11.9mm
- Case Material: Carbon Core Guard structure with resin
- Dial Colour: Grey
- Crystal: Mineral glass
- Movement: Tough Solar quartz (light-powered)
- Display Type: Analog-digital combination
- Band Material: Resin
- Band Colour: Green
- Clasp Type: Tang buckle
- Water Resistance: 200 metres
- Shock Resistance: Yes
- Bluetooth: Mobile link connectivity
- Functions: World time, stopwatch, timer, 5 daily alarms, hourly time signal, full auto-calendar, LED backlight
- Power Reserve: Solar charging system
- Weight: 52g
- Warranty: 1-year international Casio warranty
FAQ
Q: How does the Tough Solar charging system work?
A: The GA-B2100-3A features Casio's Tough Solar technology, which converts both natural and artificial light into electrical energy to power the watch. Once fully charged, the power reserve can last several months even in complete darkness, eliminating the need for regular battery replacements.
Q: What functionality does the Bluetooth connectivity provide?
A: The Bluetooth mobile link feature allows the watch to connect to your smartphone via the G-Shock Connected app. This enables automatic time synchronization, easy access to world time settings across 300+ cities, alarm and timer configuration, and a phone finder function.
Q: Is this watch suitable for swimming and water sports?
A: Yes, with 200-metre water resistance, the GA-B2100-3A is fully suitable for swimming, snorkelling, and most water sports. This rating exceeds ISO standards for recreational diving, though the watch is not designed for professional saturation diving.
Q: What is the Carbon Core Guard structure?
A: Carbon Core Guard is Casio's advanced protective technology that incorporates carbon-reinforced resin in the case structure. This provides exceptional shock resistance and durability while keeping the watch lightweight and slim compared to traditional all-metal protective cases.
Q: How do I activate the LED backlight?
A: Press the dedicated illumination button on the watch case to activate the LED backlight, which illuminates both the analog hands and digital display for easy reading in low-light conditions. The afterglow duration can be configured via the connected smartphone app.
Q: Will this watch fit comfortably on smaller wrists?
A: The 45.4mm case diameter positions this as a mid-sized G-Shock, more compact than many oversized sport models. The resin band is adjustable to fit a wide range of wrist sizes. We recommend trying the watch at our boutique to ensure the perfect fit for your wrist.
Q: Does this model come with the original Casio packaging?
A: Yes, every GA-B2100-3A purchased from Cassims & Co. arrives in the original Casio G-Shock presentation box with all accompanying documentation and warranty materials, ensuring authenticity and proper protection.
Warranty
- This Casio G-Shock GA-B2100-3A is covered by a 1-year international manufacturer warranty from the date of purchase
- The warranty is valid only when purchased from an authorised Casio retailer such as Cassims & Co.
- Coverage includes manufacturing defects in materials and workmanship under normal use conditions
- The warranty does not cover normal wear and tear, including scratches, case discolouration, or band deterioration from regular use
- Battery-related issues are excluded as this is a solar-powered watch with a rechargeable cell designed to last the lifetime of the watch
- Accidental damage, impacts beyond the shock-resistance specification, or misuse are not covered
- Water damage resulting from improper use (operating buttons underwater, exposure beyond rated depth) is excluded
- Unauthorized repairs, modifications, or case opening void the warranty immediately
- Retain your original purchase receipt as proof of purchase date and authorized retailer status for warranty claims
- Warranty service is provided through Casio's authorized service network—contact Cassims & Co. for assistance with warranty claims
Care Guide
- Clean the resin case and band regularly with a soft, damp cloth to remove dirt, sweat, and salt deposits that can degrade the material over time
- Avoid prolonged exposure to extreme temperatures above 60°C or below -10°C, which may affect the resin components and solar charging efficiency
- Rinse the watch with fresh water after exposure to saltwater or chlorinated pool water to prevent mineral buildup and material degradation
- Ensure the crown and buttons are not operated while the watch is wet or submerged to maintain water resistance integrity
- Keep the watch exposed to light regularly to maintain the solar charge—even indirect indoor lighting is sufficient for everyday wear
- Store the watch in a location with occasional light exposure during extended periods of non-use to prevent complete power depletion
- Avoid direct contact with solvents, cosmetics, perfumes, and harsh chemicals that may discolour or damage the resin materials
- Do not attempt to open the case back yourself—internal servicing should only be performed by authorized Casio service centres
- If the watch displays a low-charge indicator, expose it to bright light for several hours to restore full power reserve
- Check the water resistance seal annually if you frequently use the watch in water, particularly before extended aquatic activities