Superlative Chronometer

The assembly and regulating of Rolex mechanical movements are carried out entirely by hand. The hundreds of components comprising a Rolex movement, often tiny and complex geometry are manufactured with a precision of the order of a few microns.

Such rigorous execution allows 100 percent of Rolex movements to meet the accuracy criteria of the Swiss Official Chronometer Testing Institute and the assembled watch to be certified by Rolex as Superlative Chronometer.