The G-Shock GA-900A-1A9DR Heavy Duty Industrial Series stands as a bold statement of strength, utility, and modern streetwear aesthetic. Designed with a distinct industrial motif inspired by construction equipment and heavy industrial tools, this timepiece is built to endure the harshest environments while delivering maximum visual impact. Whether navigating rugged outdoor terrain or upgrading your daily street style, the GA-900A-1A9DR delivers absolute toughness. At Ranasinghe Watch Works, Sri Lanka’s premier timepiece destination since 1931, we bring you this iconic Casio G-Shock backed by guaranteed authenticity and dedicated local service.

Premium Design

The overall design architecture of the G-Shock GA-900A-1A9DR is rooted in industrial toughness. The standout 10-sided bezel mimics the shape of a heavy-duty mechanical nut, secured by four bold screws anchored into the resin case structure. This tactile, multi-dimensional framework creates an aggressive silhouette that commands attention. The high-visibility yellow resin strap contrasts brilliantly against the matte black case and dial accents, creating a vibrant aesthetic that seamlessly bridges the gap between tactical utility gear and modern urban fashion.

Dial Features

The multi-dimensional dial of the GA-900A-1A9DR combines analog precision with clear digital functionality. Large, prominent hands are driven by high-torque step motors, offering smooth operation and easy readability at a glance. High-contrast yellow accents frame the indices, while the digital LCD screens display the time, day, date, and active function modes. The hands feature a specialized finish for added visual texture, complemented by a Super Illuminator LED light with selectable illumination duration to ensure clear visibility in total darkness.

Case Features

Crafted from high-durability resin, the case of the GA-900A-1A9DR is built to absorb intense mechanical impacts and vibrations. The resin case structure isolates the internal module, creating the signature G-Shock shock-resistant defense framework. Measuring 52.8mm in diameter and 16.9mm in thickness, the case offers a powerful presence on the wrist without adding unnecessary bulk or weight. A scratch-resistant mineral glass lens sits slightly recessed beneath the bezel edge, shielding the dial face from direct impacts, scrapes, and abrasions.

Movement

Inside the GA-900A-1A9DR lies a precise Japanese quartz movement engineered by Casio. Renowned for its accuracy and reliability, this movement maintains timekeeping precision within ±15 seconds per month under normal operating conditions. Designed with power efficiency in mind, the movement is optimized to deliver an impressive approximate battery life of up to 7 years on a standard CR2016 battery, ensuring long-term worry-free performance for wearers across Sri Lanka.

Strap/Bracelet

The watch is fitted with a heavy-duty, high-grade resin strap in a vivid yellow finish. Engineered to withstand daily wear, sweat, UV exposure, and environmental humidity, the resin band retains its flexibility and vibrant color over time. The textured surface prevents slipping on the wrist, while the sturdy stainless steel double-pin buckle closure provides a secure, custom fit during active sports, physical work, or outdoor excursions.

Water Resistance

Engineered for serious marine activities, the G-Shock GA-900A-1A9DR features a professional 200-meter (20 bar) water resistance rating. This robust water protection allows you to wear the watch confidently while swimming, snorkeling, jet-skiing, or enduring heavy tropical monsoon rains in Sri Lanka. The button gaskets and sealed case back prevent moisture ingress, guaranteeing internal movement safety in extreme aquatic environments.

Comfort

Despite its heavy-duty build, the GA-900A-1A9DR weighs approximately 65 grams, making it exceptionally lightweight and comfortable for all-day wear. The ergonomically curved lugs contour naturally around the wrist, preventing pinch points and reducing wrist fatigue during extended activity. The knurled surfaces on the operational buttons allow easy, non-slip operation—even when wearing gloves or operating in wet conditions.

Ideal For

This timepiece is ideal for modern men who demand a watch that matches an active lifestyle. It is tailored for modern sports enthusiasts, outdoor explorers, construction professionals, engineers, and fashion-forward individuals seeking an authentic industrial streetwear piece. Its rugged durability makes it perfect for daily commutes, weekend adventures, and extreme environmental conditions.

Why Buy From Ranasinghe Watch Works

When purchasing a premium timepiece like the G-Shock GA-900A-1A9DR, authenticity and service assurance are paramount. Established in 1931, Ranasinghe Watch Works is Sri Lanka’s trusted authority on original, world-class timepieces. Every watch sold comes with an official manufacturer-backed warranty and an unquestionable guarantee of 100% genuine origin. Our heritage of horological expertise ensures you receive dedicated customer care, professional after-sales support, and secure island-wide delivery.

Conclusion

The G-Shock GA-900A-1A9DR Yellow Accent Industrial Watch is an extraordinary blend of rugged engineering, long battery life, and vibrant street style. With its 200m water resistance, 7-year battery, and iconic nut-shaped bezel design, it is built to perform in any setting. Choose Ranasinghe Watch Works for your purchase to enjoy complete peace of mind, reliable local warranty support, and an authentic product from Sri Lanka’s oldest timepiece specialists.

PRODUCT HIGHLIGHTS

• Distinct 10-sided nut-shaped bezel with four corner-anchored securing screws.

• High-contrast yellow resin band paired with a matte black resin case.

• Exceptional 7-year battery life powered by a single CR2016 battery.

• Legendary G-Shock hollow-case shock resistance structure.

• Professional 200-meter (20 Bar) water resistance for water sports and diving.

• Bright Super Illuminator LED light with selectable illumination duration.

• High-torque step motor for smooth, accurate analog hand movement.

• World Time cover covering 31 time zones and 48 major global cities.

• Precise 1/100-second stopwatch and 24-hour countdown timer.

• 5 daily alarms with target time alarm and hourly time signal.

KEY FEATURES

• Brand: Casio

• Model: GA-900A-1A9DR

• Gender: Men

• Collection: G-Shock (Heavy Duty Industrial Series)

• Movement: Japanese Quartz

• Display: Analog-Digital (Ana-Digi)

• Glass: Scratch-Resistant Mineral Glass

• Case Material: Resin

• Band Material: Resin

• Band Color: Yellow

• Dial Color: Black with Yellow Accents

• Case Diameter: 52.8 mm

• Case Thickness: 16.9 mm

• Weight: 65 g

• Water Resistance: 200 Meters / 20 Bar

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

• Battery: CR2016 (Approx. 7 Years Life)

• Warranty: 2-Year International / Official Local Warranty

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

BUYING REASONS

1. Guaranteed 100% Authentic: Purchased directly through authorized distribution channels by Ranasinghe Watch Works.

2. 7-Year Battery Life: Minimizes maintenance with multi-year hassle-free battery performance.

3. 200m Water Resistant: Fully safe for swimming, snorkeling, and water sports in Sri Lankan waters.

4. Industrial Aesthetic: Unique nut-shaped bezel design that elevates streetwear and outdoor gear.

5. Extreme Shock Resistance: Engineered to withstand drops, heavy vibration, and accidental impacts.

6. High Visibility: Super Illuminator LED light ensures quick readability in darkness.

7. Comfortable Lightweight Build: Weighs only 65 grams for effortless all-day wrist comfort.

8. Multi-Function Utility: Features world time, stopwatch, countdown timer, and 5 daily alarms.

9. Heritage Retailer: Backed by Ranasinghe Watch Works—serving Sri Lanka with watch sales since 1931.

10. Island-Wide Island Delivery: Fast, safe, and reliable doorstep shipping across Sri Lanka.

SHOP MORE CASIO

• Explore the complete Casio Watch Collection at Ranasinghe Watch Works.

• Browse our full Casio G-Shock Series range.

• Discover more Men's Sports Watches.

LEARN MORE ABOUT THIS WATCH

• Visit the official manufacturer page on Casio International G-Shock GA-900 Series.

FAQ

1. Is the G-Shock GA-900A-1A9DR original at Ranasinghe Watch Works?

Yes, all watches sold at Ranasinghe Watch Works are 100% original and genuine, accompanied by official warranty cards and manufacturer packaging.

2. What is the battery life of the Casio GA-900A-1A9DR?

The GA-900A-1A9DR features an extra-long battery life of approximately 7 years using a single standard CR2016 battery.

3. Can I wear the G-Shock GA-900A-1A9DR while swimming?

Yes, this model features 200-meter (20 bar) water resistance, making it suitable for swimming, snorkeling, water sports, and heavy rain.

4. What are the main dimensions of the GA-900A-1A9DR?

The case measures 52.8mm in diameter, 16.9mm in thickness, and has a total weight of approximately 65 grams.

5. Does this model feature a backlight?

Yes, it includes a Super Illuminator high-brightness LED backlight with selectable illumination duration (1.5 seconds or 3 seconds) and afterglow.

6. What kind of glass protects the dial?

The GA-900A-1A9DR uses a hard mineral glass crystal that is highly resistant to scratches and impact damage.

7. Does Ranasinghe Watch Works deliver across Sri Lanka?

Yes, Ranasinghe Watch Works offers reliable, fast island-wide delivery throughout Sri Lanka for all online purchases.

8. What warranty is offered on the GA-900A-1A9DR?

The watch comes with an official manufacturer warranty covering movement defects and internal accuracy, fully supported by Ranasinghe Watch Works.

9. Can the resin strap be replaced if needed?

Yes, the resin strap on the GA-900A series can be replaced or interchanged with compatible official G-Shock bands.

10. How does the Hand Shift feature work on this watch?

The Hand Shift function moves the analog hands out of the way with the touch of a button to provide an unobstructed view of the digital displays.