G-SHOCK GMCB2100ZE1A : 50th Anniversary Limited Edition

Casio G-SHOCK Full Metal Series – Model GMCB2100ZE1A

50th Anniversary Limited Edition

The GMCB2100ZE1A is a commemorative model from Casio’s FULL METAL GMC-B2100 Series, released in celebration of Casio Watch’s 50th Anniversary. With a distinctive blend of high-end craftsmanship, innovation, and symbolism, this all-black G-SHOCK timepiece is enhanced with gold accents and exclusive engravings, marking a milestone in Casio’s legacy of durability and design.

Design Overview

This premium chronograph pairs an ion-plated full-metal construction with refined golden detailing. At its core is the bold black-and-gold color scheme, symbolizing the very moment new value is born — the concept of going from "0" to "1". The bezel and band are coated with a black ion plating, while a single golden link on the band, engraved with “50th ANNIVERSARY”, creates a striking contrast that captures light like a flicker of innovation.

The octagonal bezel and screw-lock crown reinforce the toughness of the G-SHOCK identity while enabling a slim, compact fit. Around the dial, a unique binary pattern (0s and 1s) is printed, celebrating Casio’s spirit of creating something out of nothing — a tribute to innovation and technology.

Key Highlights

✔ Full-metal construction with black ion plating, symbolizing durability and elegance
✔ Single gold-colored link engraved with “50th ANNIVERSARY” – a subtle yet symbolic tribute
✔ Binary-printed dial ring expressing the journey of value creation
✔ Bluetooth® connectivity via the CASIO WATCHES app
✔ Tough Solar-powered movement for worry-free, eco-friendly performance
✔ 200-meter water resistance with shock-resistant structure
✔ Screw-down crown and one-touch three-fold clasp for premium usability
✔ Limited Edition model, launching April 2025

Features & Specifications

Case & Band

• Case size: 51.3 × 46.3 × 12.4 mm

• Material: Stainless Steel (Black Ion Plated)

• Band: Stainless Steel (Solid Band, One-touch 3-fold Clasp)

• Weight: 171 g

Exterior

• Glass: Mineral Glass

• Crown: Screw Lock Crown

• Surface Treatment: Black ion plated case and band

• Other: Neobrite luminous coating

• Compatible Band Size: 150–205 mm

Timekeeping & Connectivity

• Bluetooth® Mobile Link (CASIO WATCHES App)

• Functions via App:

  • Auto time adjustment

  • Easy watch settings

  • Access to approx. 300 world time cities

  • Time & Place log

  • Phone finder

Display & Functions

World Time

• Dual Time (Home City time swapping)

Stopwatch

• 1-second stopwatch

• Measuring capacity: 23:59'59

• Modes: Elapsed time, split time

Timer

• Countdown Timer

  • Unit: 1 second

  • Range: 1 minute to 24 hours

  • Increments: 1-minute / 1-hour

Alarms

• Daily Alarm

• Hourly Time Signal

Lighting

• LED Light (Super Illuminator)

• Afterglow

• Light Color: LED White

Calendar

• Full Auto-calendar (to year 2099)

Other Functions

• Power Saving Mode (hands stop in the dark)

• Battery Level Indicator

• Regular Timekeeping:

  • Analog: 3 hands (hour, minute [10-second intervals], second)

  • Digital: 3 dials (mode, battery, dual time/stopwatch/countdown timer/alarm/day), plus day indicator

Battery & Power

• Power Source: Tough Solar (solar rechargeable)

• Run Time:

  • Approx. 5 months on full charge (with regular use)

  • Approx. 18 months in total darkness with power save on

Accuracy

• ±15 seconds per month (no mobile link function)

Summary

The GMCB2100ZE1A is more than a watch — it’s a celebration of Casio’s 50-year legacy of innovation and excellence. From its black-gold aesthetic and engraved anniversary link to its binary code dial and solar-powered smart connectivity, this full-metal G-SHOCK is a sophisticated fusion of history and forward-thinking design. For collectors, tech-lovers, or fans of symbolic craftsmanship, this anniversary model captures the essence of Casio’s timeless evolution.

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.