In 2004, Frederique Constant introduced the first in-house patented manufacture movement: the award-winning Heart Beat Manufacture Caliber. Four years later, the brand unveiled its first in-house manufacture Tourbillon based on the Heart Beat Manufacture. In 2016, Frederique Constant created another grand complication: the manufacture Perpetual Calendar. In honor of the brand’s 30 years anniversary, the Perpetual Calendar Tourbillon Manufacture represents the outcome of all the knowhow the Brand gathered during the development of its in-house manufacture movements resulting in this grand complication. This model exists in four version: the first one is in stainless-steel, the second is in rose gold plated stainless-steel, the third one is in stainless-steel with a skeleton dial (88 pieces each) and the last one, limited to 30 pieces, is in rose gold with a skeleton dial. The limited 30 pieces edition reflects on the 30 years of the manufacture’s history.