This feature displays the exact date, taking into account the variable length of the months and the leap-year cycle. To accomplish this feat, the movement has a mechanical “memory” of four years, or 1,461 days. This complexity has not prevented Breguet from creating one of the thinnest movements it has, with a thickness of just 4.5mm. In terms of aesthetics, the Classique 7327 features the finest "Clous de Paris" guilloché. The moon phase is hand-hammered and sits in a sky coated in sparkling blue glitter lacquer.