Buttons and buckle

Case: The 43 mm case of the Cahill is now topped with an upgraded scratch resistant Sapphire lens with anti-reflective coating for maximum durability and legibility

Water Resistance: 100 metres

The 42mm cushion-shaped stainless steel case surrounds a black dial enhanced by luminous hands and markers and a striking inner rotating diver bezel

With round stainless-steel case

Casio G-Shock Men's Blue Watch All Brands Buttons and buckleWith 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