Blancpain Villeret Quantieme Complet Opalin Diamond Red Gold Men's Watch - 6264 2987 MMBComplete Calendar. This practical complication indicates the date, day of the weeks and the month. The changing face of the moon reproduced on the dial adds a poetic note. Moon phases. The reproduction of the lunar cycles on the dials of Blancpain complete calendar watches evokes the time honored ties between watchmaking and astronomy. Water Resistance: 3 bar Width Between Horns: 20 mm Winding: Automatic, calibre 6763 Power Reserve: 100 hours