Men's Watch Casio G-Shock GA-100-1A2ER Ø 51 mm Black Multicolour

The Casio G-Shock GA-100-1A2ER is a bold expression of urban resilience, built for men who move with purpose and precision. Designed to endure the extremes while standing out with unmistakable c... Read More

The Casio G-Shock GA-100-1A2ER is a bold expression of urban resilience, built for men who move with purpose and precision. Designed to endure the extremes while standing out with unmistakable character, this timepiece merges form and function in one powerful statement.

Design & Materials

Crafted with a commanding 51 mm resin case, the GA-100-1A2ER features a striking black-and-blue dial layered with analog and digital displays. The mineral crystal adds durability, while the matte black resin strap ensures comfort and toughness in any environment. Rugged yet refined, every detail speaks to G-Shock’s uncompromising approach to design.

Movement & Performance

Driven by a reliable quartz movement, this model offers split-second accuracy with 1/1000-second stopwatch capability. Key features include a daily alarm, auto-calendar, and world time function—housed in a shock-resistant case with 200M water resistance. Built to perform under pressure, it’s a trusted companion for active lifestyles and challenging conditions.

The GA-100-1A2ER is more than a watch—it’s a tool built to last, capturing the enduring spirit of G-Shock and the legacy of time passed from one generation to the next.