Casio G-Shock GR-B300-8A2ER Gravitymaster – Grey & Ice Blue. The G-Shock GR-B300-8A2ER Gravitymaster is a full-analogue pilot’s watch built for serious use in the air and on the ground. A grey bio-based resin case with striking ice-blue accents gives a modern cockpit feel, while the Carbon Core Guard structure, Tough Solar power and Bluetooth smartphone link keep it tough, smart and low-maintenance.
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