Blancpain 6654.4

The Blancpain caliber 6654.4 is an automatic movement measuring 32 mm in diameter and 5.48 mm in height, with 28 jewels and a frequency of 28,800 vibrations per hour. It has a silicon hairspring, sweep seconds, and a power reserve of 72 hours, and provides date, day, month, and moon phase complications. This caliber powers the Villeret Quantième Complet, Villeret Quantième Complet Phases de Lune, and Villeret Quantième Complet Demi-Savonnette models.