Calatrava wristwatch with dial in cloisonné enamel. Three lively blue tits perch on a tree in blossom in this white gold limited edition watch, which gives center stage to some of nature’s most acrobatic birds and delights in their flamboyant plumage. The cloisonné enamel dial required more than 120 cm of 0.07 mm 24k yellow gold wire, as well as transparent, opaque, and opalescent enamels in up to 19 colors, with 10 firings at temperatures exceeding 700°C. Ultra-slim self-winding caliber 240, which can be admired through a sapphire crystal caseback, protected by a hinged dust cover. Case diameter: 38.6 mm. One of a limited edition set of 2 different designs celebrating Patek Philippe’s first 10 years in China. 2015.