G-Shock Casio G-Shock Horloge GR-B300-1A4ER Gravity Master Solar Bluetooth 54mm

Designed for men, the Casio G‑Shock GR-B300-1A4ER Gravity Master combines solar power and Bluetooth functionality in a bold, angular tool-inspired design in deep black with sharp gray accents. The stepped bezel and chunky crown guards create a distinctly rugged silhouette, while the dial pairs a large top digital display with an analog layout and rotating-style sub-dial elements. Bright orange details highlight index markers, an inner ring, and the TOUGH SOLAR and G‑SHOCK branding, complemented by high-contrast track markings and large grid-like date numerals.