Description
CASIO GST-B400BD-1A2ER is a refined G-STEEL that balances toughness with modern design.
The 46.9 × 49.6 × 12.9 mm case is one of the slimmest in the lineup, and at around 160 g, it offers a solid metal feel without bulk
The design features:
black ion-plated steel + deep blue metallic dial, giving a sleek and modern look.
Despite the layered structure, the dial remains clear and easy to read.
Key advantages:
Carbon Core Guard structure,
200 m water resistance,
mineral glass durability
Technology highlights:
Tough Solar power,
Bluetooth smartphone sync,
world time (38 zones),
double LED illumination,
hand shift function
CASIO GST-B400BD-1A2ER — a modern G-STEEL combining strength, tech, and clean urban style.
