G-Shock Watch. GSTB100-1A - The "Turbine" Steel Icon

The GST-B100-1A is a study in Mechanical Motion. Its most striking feature is the "Blade Antenna"—a rotating disk at the 9 o'clock position modeled after the thick blades of a jet engine. This isn't just for show; it rotates to indicate the battery level and alarm settings, giving the watch a "living" mechanical soul.

The watch utilizes a Layer Guard Structure, sandwiching shock-absorbing resin between two layers of rigid stainless steel. This creates a high-end, heavy-metal aesthetic that can survive a construction site or a boardroom with equal ease.

Key Performance Features

Solid Stainless Steel Bezel: A massive, screw-down steel bezel that provides a premium, "heavy" weight (101 g) and elite structural protection.

The "Turbine" Disk: A functional rotating sub-dial that changes color to show battery status and spins when the stopwatch or alarm is activated.

Smartphone Link (Bluetooth®): Seamlessly connects to your phone to ensure the analog hands are always perfectly synced to atomic time, no matter what time zone you land in.

Tough Solar Power: High-capacity solar charging integrated into the dial, ensuring the high-torque motor for the turbine and hands never misses a beat.

Dual Dial World Time: Features a dedicated sub-dial at the 6 o'clock position to track a second city simultaneously—the ultimate "Frequent Flyer" tool.

Super Illuminator (High-Brightness LED): A high-intensity white LED that floods the deep, 3D dial with light for perfect nighttime visibility.

200m Water Resistance: Fully professional-grade protection—this "Steel Suit" is equally at home in the ocean as it is under a tuxedo cuff.

In the Box
Premium G-STEEL Presentation Box, G-SHOCK GST-B100-1A "Steel & Resin," Technical Manual, and Warranty.