Bronze is a material which, over the last couple of decades, has increasingly been used for watch cases, in both limited editions and regular production models. Bronze at its most basic is an alloy of two metals, copper and tin, and it has an age all to itself – the Bronze Age, in which its toughness helped to jump-start human civilization. Its biggest weakness is also an asset – bronze tends to form an area of surface corrosion, but that actually protects the underlying metal and prevents further corrosion. One of the most important uses for bronze historically, and even today, is for marine fittings as it resists saltwater corrosion very well. In watch cases, marine-grade aluminum bronzes are often used for precisely this reason, but generally, the parts of the watch that come in contact with the skin are a different metal – often, titanium. For the new Omega300 Bronze Gold, however, Omega has developed a new alloy of bronze and gold which is sufficiently resistant to even surface corrosion that it can be worn in direct contact with the body – and which has a number of other interesting properties as well.
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