Casio GRB3001A4DR G-Shock Gravity Master Men’s Watch

Whatever you’re doing, wherever you are — the G-SHOCK Master of G line has your back. Based on GRAVITYMASTER, MUDMASTER, and MUDMAN models that deliver peak performance in punishing conditions in the air and on land, this line features a black watch case symbolizing toughness, with accents in vivid emergency colors that capture the world of professionals involved in rescue efforts and other critical missions. The organic form of the GRAVITYMASTER GR-B300EC is inspired by next-generation aircraft and rendered with a seamless exterior design. The Carbon Core Guard structure and wide 3D face deliver durability, readability, and a comfortable fit. Enjoy all the practical functions as well, including dual-time simultaneously showing the time in two cities, a flight log memory function for recording routes traveled, and more.

Emergency colors accenting a black watch face

Vivid red, orange, and yellow hues employed by rescue teams and other professionals are featured as accent colors. Their striking contrast against the powerful solid black design ensures readability while creating a look befitting professional gear.

Cutting-edge design imbued with functional beauty

The organic form inspired by next-generation aircraft is rendered with a seamless exterior design. Features including the watch’s Carbon Core Guard structure and the wide 3D face deliver durability, readability, and a comfortable fit. Enjoy all the practical functions as well, including dual-time simultaneously displaying the time in two cities, a flight log memory function for recording routes traveled, and more.

Carbon Core Guard structure, both strong and light

A carbon fiber-reinforced resin case protects the module, making the most of the high degree of strength and outstanding durability delivered by the carbon material to achieve a size ensuring a comfortable fit.

Attention to materials: Bio-based resin

Key resin components used in the case, bezel, band, and more are made with bio-based resin. Produced using renewable organic resources, the material is expected to help reduce environmental impact.