The Casio G-Shock GA-110-1A stands as one of the most celebrated analog-digital timepieces ever crafted by Casio. Designed with a bold, oversized profile and a mechanistic visual aesthetic, the GA-110 series revolutionized the modern sport watch landscape upon its initial release. At Ranasinghe Watch Works, serving watch enthusiasts across Sri Lanka since 1931, we bring you this iconic black resin model guaranteed for 100% authenticity, performance, and long-lasting value.

Premium Design

Drawing inspiration from industrial equipment and retro-futuristic steampunk concepts, the GA-110-1A exhibits a powerful presence on the wrist. The matte black resin case measures 55 × 51.2 × 16.9 mm, giving it an undeniable street-wear appeal. High-contrast metallic silver hour markers and gear-shaped hands clash dramatically against the dark backdrop, delivering a sharp aesthetic that transitions seamlessly from rugged outdoor pursuits to modern urban casual wear.

Dial Features

The intricate, four-layer dial assembly of the Casio G-Shock GA-110-1A fuses traditional analog hands with dual digital displays. Small three-dimensional cog-shaped components line the perimeter, working alongside an integrated speed indicator display. The layout offers clear visibility for timekeeping, stopwatch split times, world time zones, and daily alarm indicators simultaneously. An amber LED light with an auto-light switch illuminates the dial automatically whenever you tilt your wrist toward your face.

Case Features

Built on G-Shock's proprietary hollow-core case architecture, the GA-110-1A is engineered to shield internal components against direct impacts, vibrations, and harsh drops. Prominent resin bezels surround the mineral glass face, creating a protective barrier that keeps scratches away from the crystal. Furthermore, the watch includes JIS Class-1 magnetic resistance, ensuring that close proximity to electronic equipment or magnetic fields won't compromise timekeeping accuracy.

Movement

At the core of the GA-110-1A is a precision-engineered Japanese quartz movement (Module 5146) renowned for reliability. Operating with an accuracy of within ±15 seconds per month, this movement drives the 1/1000-second millisecond stopwatch, countdown timer, full auto-calendar (to year 2099), and multi-function alarms. Powered by a CR1220 battery, it delivers around 2 years of reliable power.

Strap/Bracelet

The durable black resin band is contoured to provide maximum ergonomic wrap around the wrist. Fitted with a heavy-duty stainless steel buckle, the strap features a dual-lug adjustment pattern that ensures breathability and a precise fit during high-intensity physical activities, water sports, or long daily wear.

Water Resistance

With a certified 200-meter (20 bar) water resistance rating, the GA-110-1A handles underwater pressure with ease. Whether you are swimming in tropical Sri Lankan waters, tackling river adventures, riding through heavy monsoon rain, or engaging in recreational diving, this watch guarantees complete water-tight security without compromising functionality.

Comfort

Despite its commanding 51.2mm width, the watch weighs just 72 grams thanks to light yet resilient resin materials. The curved case back and flexible resin strap disperse pressure evenly across the wrist, offering a light, comfortable fit that won't tire your arm during all-day wear.

Ideal For

• Active individuals and outdoor adventurers who require maximum shock resistance.

• Urban trendsetters, athletes, and fitness enthusiasts looking for a bold analog-digital statement watch.

• Anyone seeking a low-maintenance, water-resistant daily driver suited for tropical Sri Lankan weather.

Why Buy From Ranasinghe Watch Works

When purchasing luxury timepieces and authentic Casio watches in Sri Lanka, store reputation matters. Ranasinghe Watch Works has stood as a trusted name in horology since 1931.

• 100% Genuine Guarantee: Every product is sourced through official channels.

• Official Warranty: Complete peace of mind with backed service guarantees.

• Horological Expertise: Decades of experience in watch repair, servicing, and technical support.

• Islandwide Shipping: Secure and fast delivery anywhere in Sri Lanka.

Conclusion

The Casio G-Shock GA-110-1A remains an unmatched icon in the world of sport timepieces. Combining classic Japanese precision, 200m water resistance, JIS Class-1 magnetic resistance, and an unmistakable large-face design, it remains a top choice worldwide. Secure your authentic G-Shock GA-110-1A today from Ranasinghe Watch Works.

PRODUCT HIGHLIGHTS

• Authentic Casio G-Shock GA-110-1A big-face analog-digital watch.

• Signature G-Shock shock-resistant construction for extreme durability.

• 200-meter (20 Bar) water resistance suitable for swimming and diving.

• JIS Class-1 magnetic resistance protects quartz timekeeping.

• High-precision 1/1000-second stopwatch with built-in speedometer function.

• World time function covering 29 time zones (48 cities + UTC).

• Auto Amber LED light with afterglow functionality.

• Lightweight resin body weighing only 72 grams.

• 5 daily alarms including 1 snooze alarm and hourly time signals.

• Backed by official warranty and 100% authenticity from Ranasinghe Watch Works (Est. 1931).

KEY FEATURES

• Brand: Casio

• Model: GA-110-1A (GA-110-1ADR)

• Gender: Men's

• Collection: G-Shock Analog-Digital

• Movement: Japanese Quartz (Module 5146)

• Display: Hybrid Analog + Digital

• Glass: Scratch-Resistant Mineral Glass

• Case Material: Resin

• Band Material: Resin

• Band Color: Black

• Dial Color: Black with Silver Indices & Accent Gears

• Case Diameter: 51.2 mm (Case size: 55 × 51.2 × 16.9 mm)

• Case Thickness: 16.9 mm

• Weight: 72 g

• Water Resistance: 200 Meters / 20 Bar

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

• Battery: CR1220 (approx. 2-year lifespan)

• Warranty: Official Manufacturer / Retailer Warranty

• Country of Origin: Japan Movement / Assembled in Casio certified facilities

BUYING REASONS

1. Unbeatable Durability: Built using Casio's hollow-case shock-resistant structure that absorbs heavy impact effortlessly.

2. 200M Water Resistance: Perfect for ocean swimming, water sports, and daily tropical rainfall in Sri Lanka.

3. Timeless Street Style: The oversized black bezel and silver gear dial deliver an iconic street-fashion look.

4. Millisecond Stopwatch: Features a ultra-precise 1/1000-second chronograph equipped with speed measurement capabilities.

5. Magnetic Shielding: Built with JIS Class-1 magnetic resistance to keep your watch running true around electronics.

6. Global Utility: Easily switch between home time and 29 world time zones while traveling.

7. Comfortable Lightweight Fit: Weighs just 72 grams, allowing long wear during workouts or daily routines.

8. Low Maintenance: Powered by a long-lasting CR1220 battery with minimal up-keep required.

9. Guaranteed Authenticity: Sourced directly through verified supply chains via Ranasinghe Watch Works.

10. Heritage Seller Trust: Backed by over 90 years of watch retailing excellence in Sri Lanka since 1931.

SHOP MORE CASIO

• Explore all authentic Casio Watches in Sri Lanka: Casio Collection

LEARN MORE ABOUT THIS WATCH

• View official details directly on the manufacturer's product page: Official Casio G-Shock GA-110-1A Page

FAQ

Is the Casio G-Shock GA-110-1A 100% original at Ranasinghe Watch Works?

Yes, all timepieces sold by Ranasinghe Watch Works are 100% original, brand new, and backed by official warranty coverage.

Is the G-Shock GA-110-1A waterproof for swimming?

Yes, the watch features 200-meter (20 Bar) water resistance, making it suitable for swimming, snorkeling, jet skiing, and heavy rain.

What is the battery life of the Casio GA-110-1A?

The watch uses a standard CR1220 coin battery that provides approximately 2 years of operation under regular usage.

What is the case size of the G-Shock GA-110-1A?

The case dimensions are 55 mm in length, 51.2 mm in width, and 16.9 mm in thickness.

Does the GA-110-1A watch have an illumination light?

Yes, it comes equipped with an Auto LED light (Amber color) with selectable illumination duration and afterglow.

Does this watch display both digital and analog time?

Yes, the GA-110 series features an analog two-hand display paired with digital sub-windows showing time, date, day, and functions.

What is the weight of this watch?

The G-Shock GA-110-1A is lightweight, weighing only 72 grams.

What does the speed calculation feature on the GA-110 do?

The 1/1000-second stopwatch allows users to input a distance, enabling the watch to calculate and display average speed upon stopping.

Can I get islandwide delivery in Sri Lanka when ordering online?

Yes, Ranasinghe Watch Works provides secure islandwide delivery across all provinces in Sri Lanka.

What warranty comes with this purchase?

Purchases from Ranasinghe Watch Works include standard manufacturer/store warranty covering movement defects and original authenticity guarantees.