Casio G-STEEL 2100 Series – Model GBM-2100A-2B

The GBM-2100A-2B brings a bold new look to the iconic octagonal 2100 design, blending sophisticated style with advanced functionality. Featuring a striking blue dial with silvery indexes and a tough metal bezel, this watch delivers both professional elegance and G-SHOCK durability.

Design Overview

Crafted with stainless steel and environmentally responsible bio-based resin, the GBM-2100A-2B balances toughness with sustainability. Its slim, compact profile offers versatile styling, making it perfect for both casual wear and business settings.

Equipped with Bluetooth Smartphone Link and Tough Solar power, this model ensures precise timekeeping and convenient features such as automatic time adjustment, world time, reminders, and phone finder. Double LED lights keep the display visible in any condition, while 200-meter water resistance and shock-resistant construction guarantee reliability in daily life and beyond.

Key Highlights

✔ Stainless steel bezel + bio-based resin case & band
✔ Tough Solar charging system for reliable power
✔ Smartphone Link via Bluetooth with CASIO WATCHES app
✔ World Time: ~300 cities + auto time adjustment
✔ Double LED Super Illuminator for dial & digital display
✔ Shock-resistant build and 200-meter water resistance
✔ Eco-friendly bio-resin components for sustainable design

Features & Specifications

Case & Band

• Case Size: 49.3 × 44.4 × 11.9 mm

• Material: Bio-based Resin / Stainless Steel

• Band: Bio-based Resin Band

• Weight: 72 g

Exterior

• Glass: Mineral Glass

• Compatible Band Size: 145–215 mm

• Other: Neobrite (luminous coating)

Water Resistance

• 200-meter water resistance

Timekeeping & Functions

• World Time: 38 time zones (38 cities + UTC), auto DST, home/world city swap

• Stopwatch: 1/100-second stopwatch (up to 23:59’59)

• Timer: Countdown timer (1 sec – 60 min, 1-sec increments)

• Alarms: 5 daily alarms + hourly signal

• Calendar: Full auto-calendar (to 2099)

• Accuracy: ±15 seconds per month (without mobile link)

• Hand shift feature for unobstructed digital display

• 12/24-hour format, day/month display swapping

• Battery level indicator & power saving

Lighting

• Double LED Super Illuminator:

  • Dial light

  • Digital display backlight

  • Selectable illumination (1.5 or 3 seconds), afterglow

Battery & Power

• Power Supply: Tough Solar (solar charging)

• Run Time:

  • 7 months (normal use without exposure to light)

  • 18 months (with power save mode, full charge)

Smartphone Link (via CASIO WATCHES app)

• Automatic time adjustment

• Easy watch setting

• World Time (approx. 300 cities)

• Time & Place log

• Reminder notifications

• Phone finder

Summary

The Casio G-STEEL GBM-2100A-2B combines refined style, eco-conscious materials, and advanced smart features in a slim, tough package. With solar charging, Bluetooth connectivity, and a durable stainless steel design, it’s the perfect modern G-SHOCK for those who demand both functionality and sophistication.

For more details, visit the official CASIO website here.

Warranty:

• The watch is covered by a warranty, providing assurance and protection for your purchase.

▶︎Processing Time & Shipping Policy
▶︎Refund policy
▶︎We only carry G-SHOCK USA products.
▶︎Unfortunately, we DO NOT ship internationally.