From the gravitymaster master of g-air line by casio, this shock-resistant multi-function solar watch matches high performance with cutting-edge design. 54mm carbon core guard and black ion-plated stainless steel case; mineral crystal wide 3d black dial with red details, analog display, luminous hands, date display and auto lcd dial tough solar solar-powered timekeeping with bluetooth® features include dual time, flight log memory function, world time, stopwatch, timer, alarm and calendar black bio-based resin strap; buckle clasp water-resistant to 200 meters