The G-Shock GBA-900-1ADR represents the evolution of athletic timekeeping within the renowned G-SQUAD lineup. Designed for fitness enthusiasts, runners, and active individuals in Sri Lanka, this dynamic analog-digital timepiece blends traditional shock-resistant toughness with intelligent fitness tracking technology. Whether you are training for a marathon along the Colombo coastline or navigating an adventurous outdoor trail, the GBA-900-1ADR delivers exact metrics directly to your wrist. Available at Ranasinghe Watch Works, Sri Lanka’s trusted destination for genuine luxury and sport timepieces since 1931, this model ensures you stay connected, stylish, and on target.

Premium Design

Featuring a matte black aesthetic with sharp silver and white hand accents, the G-Shock GBA-900-1ADR radiates a modern, tactical presence. Its sleek, bold bezel and structured lines reflect an urban sport design that transitions seamlessly from heavy workout sessions to casual weekend wear. Vents strategically integrated into the bezel structure enhance airflow to prevent moisture buildup during intense physical activities, striking a perfect balance between functional sports gear and rugged everyday fashion.

Dial Features

The high-contrast hybrid dial of the GBA-900-1ADR provides maximum legibility under any lighting condition. Broad analog hands display time clearly, while high-resolution digital displays render lap times, step counts, and smartphone notifications with precision. Equipped with a Super Illuminator high-brightness double LED light, both the analog face and the digital screen illuminate brightly at the tilt of a wrist, ensuring perfect visibility in low-light environments or late-night runs.

Case Features

Built to withstand severe impact, the resin case utilizes G-Shock’s iconic hollow core structure to absorb intense shocks and vibrations. Measuring 51.3mm in diameter, the case offers a strong, authoritative wrist presence without feeling unnecessarily heavy. The lightweight resin composite protects delicate internal electronic modules against accidental drops, moisture, and dust, maintaining reliable functionality through the most challenging conditions.

Movement

At the heart of the GBA-900-1ADR is a high-precision Japanese quartz movement coupled with smart accelerometer sensor technology. When paired via Bluetooth® with your smartphone, the watch uses GPS data from your mobile device to calibrate distance measurements. Once calibrated, the watch independently calculates distance, pace, and step count even when running without your phone, ensuring accurate fitness logging every time.

Strap/Bracelet

The watch is fitted with a soft, highly flexible black polyurethane strap engineered specifically for athletic comfort. Featuring multiple fine-adjustment holes along the band, it allows precise sizing adjustments to prevent slipping during high-intensity training. The ventilation slots near the lugs encourage air circulation, keeping your skin cool and dry throughout Sri Lanka's warm and humid tropical climate.

Water Resistance

Engineered to rigorous marine standards, the G-Shock GBA-900-1ADR features full 200-meter (20 bar) water resistance. This robust rating ensures absolute reliability whether you are swimming, snorkeling, participating in high-speed water sports, or braving heavy tropical downpours. It is built to perform in wet environments without compromising internal electronic components.

Comfort

Despite its robust casing and packed smart functionality, the GBA-900-1ADR weighs a modest 61 grams. Its ergonomically curved case back and soft resin strap hug the wrist naturally, distributing weight evenly. This lightweight construction eliminates wrist fatigue during extended workouts or continuous 24/7 step-tracking routines.

Ideal For

• Runners and Fitness Athletes: Ideal for individuals tracking lap times, pace, split times, and daily step totals.

• Outdoor Adventurers: Built for hikers, swimmers, and extreme sports enthusiasts who demand supreme durability.

• Everyday Urban Wear: Perfect for anyone seeking a stylish, stealthy black tactical watch for daily use.

• Tech-Savvy Users: Excellent for buyers who want smart fitness tracking features without sacrificing traditional analog watch style.

Why Buy From Ranasinghe Watch Works

Purchasing your G-Shock GBA-900-1ADR from Ranasinghe Watch Works guarantees 100% authenticity and long-term peace of mind. Operating continuously in Sri Lanka Since 1931, Ranasinghe Watch Works has built a legacy of trust, expertise, and customer satisfaction across generations.

• Guaranteed Originality: Every G-Shock watch sold is 100% genuine, sourced directly through authorized distribution channels.

• Official Warranty Protection: Enjoy standard manufacturer warranty support handled by qualified horological technicians.

• Exceptional Customer Care: Receive expert guidance in choosing, setup, and pairing your timepiece.

• Island-wide Delivery: Fast and secure shipping services delivered directly to your doorstep anywhere in Sri Lanka.

Conclusion

The G-Shock GBA-900-1ADR G-SQUAD watch combines classic shock resistance with modern fitness intelligence, making it an essential companion for active lifestyles. Upgrade your daily routine today with this feature-packed sports watch from Ranasinghe Watch Works—Sri Lanka’s premier authority in fine horology.

PRODUCT HIGHLIGHTS

• Bluetooth® Smartphone Link: Connects wirelessly via the G-SHOCK Move app for auto time sync and exercise tracking.

• Step Tracker: Integrated 3-axis accelerometer measures step counts and daily activity levels.

• Distance Calibration: Uses smartphone GPS to auto-correct distance calculations for precision running logs.

• 200m Water Resistance: Fully submersible performance designed for swimming, ocean sports, and diving.

• Super Illuminator LED Light: High-brightness double LED light illuminates both the analog dial and digital display.

• Lap Memory 45 Records: Stores lap times, split times, and running distance metrics directly on the device.

• Impact-Resistant Build: Legendary G-Shock hollow core structure protects against drops and severe shocks.

• Breathable Urethane Band: Ventilation slots enhance airflow for maximum comfort in warm tropical climates.

• World Time Function: Access dual time display for seamless global time tracking across 38 time zones.

• Lightweight Comfort: Weighs only 61g, ensuring effortless daily wear during intense physical training.

KEY FEATURES

• Brand: Casio

• Model: G-Shock GBA-900-1ADR

• Gender: Men

• Collection: G-SQUAD

• Movement: Japanese Quartz with Accelerometer Sensor

• Display: Analog-Digital (Ana-Digi)

• Glass: Mineral Glass

• Case Material: Resin

• Band Material: Resin / Soft Urethane

• Band Color: Black

• Dial Color: Black with Silver Accents

• Case Diameter: 51.3 mm

• Case Thickness: 16.6 mm

• Weight: 61 g

• Water Resistance: 200 Meters (20 Bar)

• Calendar: Full Auto-Calendar (to year 2099)

• Battery: CR2025 (Approx. 2-year battery life)

• Warranty: Official Manufacturer Warranty

• Country of Origin: Japan Movement / Assembled in Casio Authorized Facilities

BUYING REASONS

1. Smart Fitness Tracking: Easily monitor your distance, speed, pace, and step count directly from your wrist.

2. Legendary Durability: Built to endure severe drops, vibrations, and harsh environments without failing.

3. Seamless Bluetooth Connectivity: Automatically syncs accurate time and transfers workout logs to your smartphone.

4. All-Weather Ready: 200m water resistance protects against deep water submersion and heavy monsoon rains.

5. Lightweight Ergonomics: Designed for maximum comfort during long runs, gym workouts, and daily wear.

6. High Legibility: Bright double LED lights ensure clear reading in complete darkness.

7. Tactical Aesthetic: Versatile matte black styling complements both sports apparel and everyday streetwear.

8. 100% Authentic: Sourced through official channels to guarantee genuine Casio G-Shock quality.

9. Established Heritage: Backed by Ranasinghe Watch Works, a trusted horological retailer in Sri Lanka since 1931.

10. Comprehensive Support: Complete with manufacturer warranty support and expert local customer care.

SHOP MORE CASIO

• Explore the full Casio Collection at Ranasinghe Watch Works.

• Browse our complete selection of rugged G-Shock Watches.

LEARN MORE ABOUT THIS WATCH

• Visit the official manufacturer specs page: Casio G-Shock Official Website.

FAQ

Is the G-Shock GBA-900-1ADR a 100% authentic watch?

Yes, all timepieces sold at Ranasinghe Watch Works are 100% original, verified Casio G-Shock products sourced through official channels.

How does the Bluetooth feature work on the GBA-900-1ADR?

The watch pairs via Bluetooth® to the G-SHOCK Move app on iOS and Android devices, enabling automatic time adjustment, activity tracking, distance calibration, and phone finder features.

Is this watch suitable for swimming and water sports in Sri Lanka?

Yes, with 200-meter (20 Bar) water resistance, the GBA-900-1ADR is ideal for swimming, ocean activities, snorkeling, and tropical downpours.

Does the G-Shock GBA-900-1ADR require a SIM card or phone to track steps?

No, the watch has an internal 3-axis accelerometer that tracks steps independently. A phone connection is only needed to sync data or calibrate distance metrics via GPS.

What type of battery powers the GBA-900-1ADR?

It operates on a standard CR2025 lithium coin battery, offering approximately 2 years of battery life depending on Bluetooth usage and backlight activation.

Can I read the time clearly in total darkness?

Yes, the GBA-900-1ADR features a Super Illuminator double LED light that lights up both the digital display and the analog face with the press of a button or an auto-wrist turn.

What is the warranty coverage when purchased from Ranasinghe Watch Works?

Your purchase comes with an official Casio manufacturer warranty covering internal movement defects and operational issues.

Is the resin strap comfortable for hot and humid tropical climates?

Yes, the band is designed with specialized air vents and fine adjustment holes to enhance breathability and prevent sweat buildup in warm conditions.

How do I calibrate the distance tracking feature?

Connect the watch to the G-SHOCK Move app on your smartphone while running outdoors. The app utilizes your phone's GPS to calibrate the step-length calculations for accurate future stand-alone runs.

Does Ranasinghe Watch Works deliver across Sri Lanka?

Yes, Ranasinghe Watch Works provides fast, secure island-wide delivery service across Sri Lanka.