Using only the kinetic power of wearer’s wrist

Shiny PVD black coated case

it has 100 metres water resistance

The watch is powered by a reliable quartz chronograph movement and features three sub-dials to track time with precision

the Superior Chrono is built for serious water-ready everyday wear

Casio G-Shock Men's Yellow Watch Strap Width_23mm Using only the kinetic powerWith Bluetooth connectivity and a solar charging system, the new GA B2100 shock resistant watches take the iconic 2100 series to a whole other level. The Tough Solar charging system effectively converts light from any light source to power the watch, eliminating the need to replace the battery, and Smartphone pairing via Bluetooth delivers accurate timekeeping. Combining the Carbon Core Guard structure, which protects the module and provides both