Casio G-Shock Classic Watch GBM-2100A-1A2ER

Introducing the Casio G-Shock GBM-2100A-1A2ER, the technological evolution of the legendary GA-2100 that incorporates Bluetooth connectivity and Tough Solar power. Its octagonal silver case with polished finish elegantly contrasts with the dial in a captivating textured blue-green tone. Silver hands with luminescent treatment stand out against rectangular silver indices, while the subdial at 9 o'clock displays days of the week. The compact digital display at 6 o'clock presents additional information with black characters on a light background.

At its heart beats the Casio 5729 module, an analog-digital caliber with Tough Solar technology that converts any light source into energy, eliminating the need for battery changes. Bluetooth connectivity enables automatic smartphone synchronization for time adjustment, alarm configuration, and access to additional functions through the G-Shock Connected app. The watch offers world time with multiple time zones, precision stopwatch, countdown timer, five daily alarms, and automatic calendar until 2099.

Since 1983, G-Shock has redefined the limits of watch resistance. Each model is born from 10-meter drop tests and rigorous impact, vibration, and extreme condition resistance testing. This philosophy of indestructible construction now combines with the latest solar and connectivity technologies, keeping intact the rebellious DNA that has made G-Shock the reference watch for those who accept no compromises.

Shopping at TicTacArea.com means buying from real jewelers with over 30 years of industry experience, serving as official distributors, online since 1999. Every product is genuine, factory-new, and delivered with its official presentation box, documentation, and international warranty.

Technical Specifications

Reference: GBM-2100A-1A2ER
Module/Caliber: 5729
Type: Analog-digital
Movement: Quartz with Tough Solar
Water resistance: 200 meters
Shock resistance: Yes (G-Shock)
Case material: Resin
Case color: Polished silver
Strap material: Resin
Strap color: Textured black
Dial color: Textured blue-green
Crystal: Mineral
Light: LED
Diameter: 44.4 mm
Thickness: 11.9 mm
Weight: 72 grams
Functions: Tough Solar, Bluetooth, world time, stopwatch, timer, alarms, automatic calendar
Battery: CTL1616 (solar rechargeable)
Made for: Men

User manual

Download the manual in English (PDF)