Casio G-Shock 2100 Series - Model GA2100BM-7A2

The GA2100BM-7A2 blends G-SHOCK’s celebrated octagonal design with fresh, translucent aesthetics for a street-savvy twist. Featuring a sky-blue dial with a metallic vapor deposition finish and a clear resin band, this model offers a cool, confident vibe while staying true to G-SHOCK’s reputation for toughness.

Design Overview

This model is part of the GA2100BM collection, known for its shimmering colors and semi-transparent cases and bands. The GA2100BM-7A2 pairs a sky-blue metallic dial with a translucent bezel and band, resulting in a look that is both modern and retro-inspired.

Its lightweight structure is made possible through Carbon Core Guard construction, which offers strength without bulk. The combination of bold color and technical durability makes this model a standout for casual fashion enthusiasts and G-SHOCK fans alike.

Key Highlights

✔ Octagonal bezel design with transparent resin materials
✔ Sky-blue dial with metallic vapor deposition for eye-catching appeal
✔ Carbon Core Guard structure for enhanced strength and reduced weight
✔ Shock-resistant and 200-meter water resistance for active lifestyles
✔ Dual LED lighting for both analog and digital displays

Features

Case & Band

• Case Dimensions: 48.5 × 45.4 × 11.8 mm

• Material: Carbon / Resin

• Band: Resin (semi-transparent)

• Weight: 51 g

Durability

• Shock-resistant (Carbon Core Guard Structure)

• 200-meter water resistance

Timekeeping & World Time

• World Time: 31 time zones (48 cities + UTC), daylight saving on/off

• Hand Shift Function: Hands move out of the way for an unobstructed view of the digital display

Stopwatch & Timers

• 1/100-second Stopwatch

  • Measuring capacity:

    • 00:00’00”~59:59”99 (first 60 min)

    • 1:00’00”~23:59’59 (after 60 min)

  • Measuring modes: Elapsed time, split time, 1st-2nd place times

• Countdown Timer

  • Measuring unit: 1 second

  • Range: 1 second to 24 hours (settable in 1-second, 1-minute, and 1-hour increments)

Alarms & Alerts

• 5 Daily Alarms

• Hourly Time Signal

• Button operation tone on/off

Lighting

• Double LED Light

  • LED for analog: Super Illuminator (with 1.5s or 3s duration, afterglow)

  • LED for digital: Super Illuminator (with afterglow)

• Light Color: LED: White

Calendar & Timekeeping

• Full auto-calendar (to year 2099)

• 12/24-hour format

• Analog: Hour, minute (moves every 20 seconds)

• Digital: Hour, minute, second, pm, month, date, day

Battery & Power Features

• Battery: SR726W × 2

• Battery Life: Approx. 3 years

• Accuracy: ±15 seconds per month

Summary

The GA2100BM-7A2 is a bold reinterpretation of the GA2100, combining its iconic shape with translucent materials and a shimmering sky-blue dial. Its lightweight build, high durability, and expressive colors make it a must-have for style-forward individuals who demand G-SHOCK-level performance.

U.S. Release Date: April 2025

For more details, visit the official Citizen 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.