GA-100-1A4

The Casio G-Shock GA-100-1A4 is a rugged, extra-large analog-digital sports watch featuring a distinct matte black design accented by bold red and silver details. Part of G-Shock’s legendary high-performance lineup, it combines an aggressive, three-dimensional dial layout with military-grade resilience.

Technical Specifications

Dimensions: 55.0 × 51.2 × 16.9 mm

Weight: 70 grams

Material: High-durability resin case, bezel, and band with a mineral glass crystal

Movement: Japanese Quartz (Module 5081)Battery: CR1220 with an approximate 2-year lifespan.

Key Features

Extreme Durability: Engineered with complete shock resistance, magnetic resistance to shield the quartz timing, and a 200-meter water resistance rating ideal for swimming or marine sports.

Millisecond Stopwatch: A highly accurate 1/1000-second chronograph capable of measuring elapsed time, lap times, split times, and average speed over designated distances.

World Time Navigation: Tracks time seamlessly across 29 distinct time zones spanning 48 major global cities, with automated Daylight Saving Time (DST) toggles.

Daily Utilities: Includes 5 independent daily alarms (with 1 dedicated snooze alarm), an hourly time signal, and a 24-hour countdown timer with auto-repeat.

Auto-LED Lighting: Outfitted with an amber LED illumination system that automatically lights up with a flick of the wrist.