Franck Muller (born July 1958) is a Swiss watchmaker and the company of the same name. The brand of watches carries the slogan "Master of Complications". Franck Muller's watches are worn by various celebrities, among them Demi Moore, Elton John, 50 Cent, and José Mourinho. Franck Muller timepieces are famous for their fusion of "modern" style, mostly inspired by American watches from the thirties, like "Elgin tonneau", and traditional Swiss watch manufacturing.
Franck Muller is also known for its "World Premiers". Each year, the manufacturer launches at least one new line of timepieces, featuring something special and exclusive, that has never seen before in the watchmaking industry. The first such world premiere was launched in 1993. The watches had split seconds chronograph, minute repeater, and a perpetual calendar. In addition, the watches included an indicator showing the internal temperature.