It does not matter which Chopard Boutique or authorised dealer you visit as all watches are sent to the central service centre in Miami.
75 Valencia Ave #1000, Miami, FL 33134, USA.
The new Chopard Service centre in the Miami suburb of Coral Gables opened in 2013. It takes up the whole 9th floor of the building and has 9000 square feet of workshop and 2000 square feet of office/reception space. They can service most of Chopard watches in the USA with quick turnaround and not returning the watch to Geneva.
Target is 14 working days.

Regards
MTF