Villeret GMT Annual Calendar, Blancpain Calibre 6054F automatic movement, stainless steel case with polished bracelet and fixed bezel, white dial featuring silver-tone hands and Roman numeral hour markers including a subdial for displaying the 24-hour hand; provides perpetual calendar functionality (date, month, year until 2100), analog display functions: day, date, day/night indication, second time zone (GMT); powered by precision automatic mechanism with approximately 72 hours power reserve and frequency of around 28,800 vph.