Chopard Sunglasses are subjected to galvanic treatment with 23 KT gold thickness. Once polished using nickel, the unprocessed eyewear is given a genuine gold bath. This phase of the involved process is conducted by expert craftsmen entirely by hand and is just one of the reasons why Chopard holds its reputation for premium craftsmanship.The eyewear is immersed by hand in a special bath until the gold coats the frame’s metal surface. For its finishing touch each product’s metal details, trims, end pieces and temples are produced through the milling and micro-fusion processes generally adopted by goldsmiths and jewellery makers.