Casio G-STEEL 2100 Series – Model GBM-2100A-4B

The GBM-2100A-4B delivers bold metal styling with advanced technology in a compact form. Featuring a striking burgundy dial with silvery indexes, this G-STEEL model combines sophistication with the toughness G-SHOCK is known for.

Design Overview

With a stainless-steel bezel and bio-based resin case and band, the GBM-2100A-4B offers a refined vapor deposition finish while maintaining durability. The Tough Solar system powers the watch sustainably, while Bluetooth Smartphone Link ensures precise timekeeping and smart functionality.

This model is designed to transition seamlessly from casual wear to business meetings, making it a versatile and eco-conscious choice for modern lifestyles.

Key Highlights

✔ Burgundy dial with silvery indexes for a bold, refined look
✔ Bluetooth Smartphone Link with CASIO WATCHES app
✔ Tough Solar charging system
✔ Bio-based resin for sustainable design
✔ Shock-resistant & 200-meter water resistance

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

Water Resistance

• 200-meter water resistance

Timekeeping & Connectivity

• Bluetooth: Smartphone Link (CASIO WATCHES app)

• Features: Auto time adjustment, easy watch setting, ~300 world time cities, time & place, reminder, phone finder

Watch Functions

• World Time: 38 time zones, DST switching, home/world city swapping

• Stopwatch: 1/100-second stopwatch (up to 23:59’59); elapsed time, lap/split time

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

• Alarms: 5 daily alarms + hourly time signal

• Calendar: Full auto-calendar (to 2099)

• Format: 12/24-hour format

• Accuracy: ±15 seconds/month (w/o mobile link)

Lighting

• Double LED light (Super Illuminator for dial + digital backlight)

• Selectable illumination (1.5 or 3 sec) + afterglow

Battery & Power

• Tough Solar (solar-powered)

• Battery Run Time: ~7 months (normal use), ~18 months with power saving

Other Features

• Power Saving (auto display off in the dark)

• Battery level indicator

• Hand shift function

• Date/month/day of week display (6 languages)

Summary

The Casio G-STEEL GBM-2100A-4B combines sophisticated burgundy styling with advanced technology. Featuring solar charging, smartphone connectivity, and eco-friendly bio-based materials, it’s a versatile and durable watch built for both style and performance.

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.