The CITIZEN

AQ4100-57B is more than a timepiece—it is a statement of refinement, crafted for those who demand perfection in every detail. Representing the pinnacle of Japanese horology, this Super Titanium™ masterpiece embodies elegance, resilience, and innovation in equal measure.

In the serene Nagano countryside, our most skilled Meisters devote themselves to the art of watchmaking, transforming raw materials into creations of enduring beauty. Every component is meticulously selected and assembled with unwavering precision, culminating in the ultraprecise Caliber A060 movement—a triumph of engineering with an annual accuracy of ±5 seconds. Powered by light through our proprietary Eco-Drive technology, it never requires a battery, ensuring effortless reliability for a lifetime.

Its 38.3mm Super Titanium™ case, finished with Duratect Platinum, offers a luminous surface that is feather-light yet remarkably resistant to scratches and corrosion. Paired with a matching titanium bracelet, it exudes understated sophistication. Beneath the dual-sphere anti-reflective sapphire crystal lies a metallic, textured, silver dial, accented with sharp hour markers and the eagle emblem—a symbol of foresight and dedication, hallmarks of philosophy.

Beyond its artistry, this timepiece delivers uncompromising functionality: perpetual calendar, power reserve indicator, independent hour hand adjustment, time difference correction, and midnight sharp calendar update—all harmonized within a design that speaks to timeless elegance. Water resistance to 100metres ensures versatility without sacrificing refinement.

The AQ4100-57B is a celebration of craftsmanship, precision, and style. For those who seek the extraordinary, this is the ultimate expression of luxury.