3 Answers

Ciencia

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The disc combines traditional guilloche techniques with layers of vivid green enamel. Ulysse Nardin takes their enamel work so seriously that they acquired their own factory in link Le Locle to produce these components in-house. The Bucherer Exclusive Freak X Enamel utilizes a titanium case and bezel paired with a black rubber link strap highlighted by green stitching link that complements the green dial.

Yellow gold is an alloy of gold link silver and some copper and there are other alloys of colored gold as well one of my favorites is blue gold which is an alloy of gold and indium. Red gold also called rose and link pink gold depending on whom you ask is an alloy of gold and a much higher percentage of copper than yellow gold. Sometimes there's a touch of silver in there as well depending on how red you want your red gold link to be but the alloy can be and often is just copper and gold.