Designed for those who live boldly and never back down from a challenge, the best known GST-S120R Series GSTS100G-1A combines rugged durability, solar-powered performance, and advanced multifunction capabilities in one commanding timepiece. Built with a powerful resin and stainless-steel construction, this watch is engineered to thrive in demanding environments while maintaining a bold and athletic presence on the wrist.

Fueled by Tough Solar technology, equipped with 200-meter water resistance, and protected by a shock-resistant structure, the Solar Titan X1 is ready for everything from outdoor adventures to everyday challenges.

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⚙️ Basic Information

🛡️ Built for Extreme Durability

• Shock-Resistant Construction

• 200-Meter Water Resistance

• Resin & Stainless Steel Case and Bezel

• Durable Resin Band

📏 Dimensions & Weight

• Case Size: 59.1 × 52.4 × 16.1 mm

• Weight: 97 g

☀️ Tough Solar Power System

• Solar-Powered Rechargeable Battery

• Charges from Natural and Artificial Light

• Reduced Need for Battery Replacement

• Eco-Friendly Energy Efficiency

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✨ Exterior Information

💎 Rugged Premium Design

• Durable Mineral Glass Protection

• Stainless Steel Reinforced Bezel

• Bold Oversized Sports Styling

• Neobrite Luminous Hands for Enhanced Visibility

💡 Full Auto Super Illuminator

Experience exceptional readability day and night.

✔ Double LED Lighting System

✔ Full Auto LED Light Activation

✔ Super Illuminator Technology

✔ Analog Face Illumination

✔ Digital Display Backlight

✔ Selectable Lighting Duration (1.5 or 3 Seconds)

✔ Afterglow Function

✔ Bright White LED Lighting

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🌍 Advanced Watch Features

World Time Function

Travel confidently across the globe.

• 31 Time Zones

• 48 Cities + UTC

• Daylight Saving Time On/Off

• Home City & World Time City Swapping

Perfect for international travelers and global professionals.

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⏱️ Precision Stopwatch

Track every second with confidence.

• 1/100-Second Stopwatch

• Measuring Capacity: 59 Minutes 59.99 Seconds

• Elapsed Time Measurement

• Split Time Function

• 1st & 2nd Place Timing

Ideal for training, sports, and competition timing.

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⏳ Countdown Timer

Stay focused and in control.

• Countdown Range: Up to 100 Minutes

• Adjustable from 1 Second to 100 Minutes

• Flexible Timing Settings

Perfect for workouts, productivity sessions, and event management.

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🔔 Daily Alerts

Keep your schedule on track.

• 5 Daily Alarms

• Hourly Time Signal

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📅 Smart Calendar & Timekeeping

Designed for everyday convenience.

• Full Auto Calendar Until Year 2099

• 12-Hour & 24-Hour Display Formats

• Accuracy: ±15 Seconds Per Month

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⚡ Intelligent Power Management

Built to maximize energy efficiency.

Battery Performance

• Approximately 8 Months Operation After Full Charge

• Up to 19 Months in Power Saving Mode

Energy Saving Features

• Automatic Power Saving Function

• Battery Level Indicator

• Display Sleep Mode During Extended Darkness

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👀 Hand Shift Function

Need a clearer view?

The innovative hand-shift feature temporarily moves the analog hands away from the digital display, ensuring quick and unobstructed access to important information whenever needed.

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🕒 Dual Display Performance

Analog Display

• Hour Hand

• Minute Hand

Digital Display

• Hour

• Minute

• Second

• PM Indicator

• Month

• Date

• Day of the Week

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🌟 Power Beyond Limits

The GST-S120R Series GSTS100G-1A is built for individuals who demand toughness, reliability, and advanced functionality in every moment. Combining solar-powered efficiency, rugged shock resistance, global timekeeping, and powerful illumination technology, this watch is ready to perform wherever adventure takes you. From urban streets to outdoor extremes, it's a timepiece engineered to keep moving forward—just like you.