Casio G-Shock GA-2100RRB-4ADR AnaDigi Quartz Red Resin Watch (GA-2100RRB-4A)
- Sale price
- R 2,474
- List price
- R 3,299
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🚚1–2 day delivery nationwide
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The Casio G-Shock GA-2100RRB-4ADR reimagines the iconic octagonal CasiOak silhouette in a striking all-red execution that commands attention. Part of the celebrated GA-2100 series, this ana-digi timepiece delivers the legendary shock resistance and functionality that has defined G-Shock since 1983, now housed in a contemporary 45.4mm case crafted from carbon-reinforced bio-based resin. The semi-transparent red dial reveals layered depth, with bold red hour markers, dual analogue hands, and integrated digital displays positioned at 3 and 9 o'clock that provide instant access to world time, stopwatch, and alarm functions.
At Cassim & Co., we are proud to be an authorised retailer for CASIO watches, ensuring every G-Shock comes with full international warranty coverage and genuine provenance. This GA-2100RRB-4ADR exemplifies Casio's commitment to environmental responsibility, featuring a bio-based resin construction that reduces reliance on petroleum-derived materials without compromising the shock-resistant architecture that can withstand impacts up to 200 metres of water resistance. The slim 11.8mm profile makes this one of the most wearable G-Shocks ever created, sliding effortlessly under shirt cuffs whilst maintaining the brand's uncompromising durability standards.
The quartz movement ensures precise timekeeping with minimal maintenance, requiring only periodic battery replacement through our watch servicing and repairs facility. Digital functionality includes world time across 31 time zones, a 1/100-second stopwatch, countdown timer, five daily alarms, and full auto-calendar programming through 2099. The LED backlight with afterglow illuminates both analogue and digital displays for excellent low-light legibility, whilst the red resin strap features a secure pin buckle closure designed for active wear.
Whether you're seeking a bold statement piece for urban environments or a reliable tool watch for outdoor pursuits, the GA-2100RRB-4ADR delivers authentic G-Shock toughness in a decidedly modern package. Visit us at our Mall of the South boutique in Johannesburg to experience the distinctive presence of this watch in person, or take advantage of our nationwide delivery service across South Africa. This timepiece arrives complete with original Casio packaging, instruction manual, and full 1-year international warranty documentation.
Specifications
- Reference Number: GA-2100RRB-4ADR / GA-2100RRB-4A
- Brand: Casio G-Shock
- Series: GA-2100 (CasiOak)
- Movement: Quartz
- Case Diameter: 45.4mm
- Case Thickness: 11.8mm
- Case Length: 48.5mm
- Case Material: Carbon-reinforced bio-based resin
- Bezel Material: Bio-based resin
- Case Shape: Octagonal
- Dial Colour: Red (semi-transparent)
- Display Type: Analogue-digital combination
- Strap Material: Bio-based resin
- Strap Colour: Red
- Buckle Type: Pin buckle
- Water Resistance: 200 metres (20 BAR)
- Shock Resistance: Yes
- Functions: World time (31 time zones, 48 cities), stopwatch (1/100 sec), countdown timer, 5 daily alarms, hourly time signal, full auto-calendar, 12/24-hour format
- Illumination: LED backlight with afterglow
- Battery Life: Approximately 3 years
- Weight: 51 grams
- Manufactured: Thailand
FAQ
Q: Is the GA-2100RRB-4ADR suitable for swimming and diving?
A: Yes, with 200-metre water resistance (20 BAR), this G-Shock is suitable for recreational swimming, snorkelling, and surface water sports. It is not designed for saturation diving or high-velocity water sports like jet skiing.
Q: What is bio-based resin and how does it affect durability?
A: Bio-based resin is manufactured using renewable plant-derived materials rather than petroleum-based sources, reducing environmental impact. Casio's bio-based resin maintains the same shock resistance, strength, and durability as traditional resin whilst supporting sustainability initiatives.
Q: How do I change between analogue time and world time displays?
A: The analogue hands continuously display your home time, whilst the digital displays can cycle through world time, stopwatch, timer, and alarm modes using the mode button. World time covers 31 time zones across 48 cities with automatic DST adjustment.
Q: Can the battery be replaced at Cassim & Co.?
A: Yes, our watch servicing team can replace the battery for your G-Shock using genuine Casio components. We recommend battery replacement every 3 years or when the low-battery indicator appears. This service maintains your water resistance through proper resealing procedures.
Q: Is this watch comfortable for everyday wear despite being a G-Shock?
A: Absolutely. The GA-2100 series revolutionised G-Shock design with its slim 11.8mm profile, making it one of the thinnest and most comfortable G-Shocks available. The 45.4mm case wears compactly and slides easily under shirt cuffs, whilst the lightweight 51-gram construction ensures all-day comfort.
Q: Does this model come with the international Casio warranty?
A: Yes, when purchased from Cassim & Co. as an authorised Casio retailer, this watch includes a full 1-year international warranty covering manufacturing defects in materials and workmanship. The warranty is valid from your date of purchase and requires the original receipt.
Q: What is the stopwatch accuracy and maximum measurement time?
A: The stopwatch measures elapsed time with 1/100-second accuracy up to 24 hours. It includes split time and two finish time functions, making it suitable for training, sports timing, and interval workouts.
Warranty
- This Casio G-Shock watch carries a 1-year international manufacturer's warranty from the date of purchase
- The warranty is valid only when purchased from an authorised Casio retailer such as Cassim & Co.
- Coverage includes manufacturing defects in materials and workmanship under normal use conditions
- The warranty does not cover: normal wear and tear, battery replacement, strap/bracelet wear, scratches or cosmetic damage, accidental damage, water damage resulting from improper use or failure to observe water resistance limitations, damage from unauthorised repairs or modifications
- To claim warranty service, the original purchase receipt and warranty card must be presented
- Warranty service is provided through authorised Casio service centres
- The warranty does not extend the original 1-year period following repairs or battery replacement
- Water resistance is guaranteed only if the watch has not been subjected to impact or improper button operation whilst submerged
- Cassim & Co. facilitates warranty claims and provides after-sales support including battery replacement, strap adjustments, and servicing for all watches purchased from our boutique
Care Guide
- Rinse with fresh water after exposure to saltwater, chlorine, or sweat to prevent residue build-up on the resin case and strap
- Dry thoroughly with a soft cloth, paying attention to areas around buttons and case back where moisture may collect
- Avoid exposure to solvents, cosmetics, perfumes, and harsh chemicals which may discolour or damage the bio-based resin materials
- Do not press any buttons whilst the watch is underwater, as this may compromise water resistance
- Store in a cool, dry location away from direct sunlight when not in use, as prolonged UV exposure may cause colour fading over time
- Have the water resistance tested and gaskets inspected every 2-3 years, or following battery replacement, to maintain the 200-metre rating
- Clean the resin strap periodically with mild soap and water using a soft brush to remove dirt from textured surfaces
- Avoid extreme temperature fluctuations above 60°C or below -10°C, which may affect timekeeping accuracy and material properties
- If the watch is not used for extended periods, activate all functions monthly to ensure proper operation and prevent lubricant settling
- Replace the battery promptly when the low-battery indicator appears to prevent potential leakage damage to the module