Ahead of Baselworld 2018, the world’s biggest watch show, which takes place next month, Rado recently previewed a new chronograph that combines scratch resistant black ceramic and bronze. The HyperChrome Bronze Chronograph Limited Edition comes in a matte black ceramic case measuring 45 mm x 13 mm (50.3 mm lug to lug) and is contrasted by bronze chronograph pushers and side inserts. The hands and indices are a similar hue to the bronze but are actually rose gold plated. Bronze is an alloy the consists primarily of copper and is mixed with materials such as tin and aluminum. The Black Bay Bronze is made of a special mostly aluminum and copper bronze alloy that prevents patination. This bronze (CuSn8) will gain a natural patina over time as this particular alloy is not treated in a way that prevents the patination.