The Master Ultra Thin Perpetual Calendar timepiece’s sleek design houses the in-house Calibre 868, which promises 70 hours of power reserve. The well-balanced proportions and refined lugs on its polished steel case ensure an extremely comfortable fit. Its dial with a sunrayed silver background highlights the moon phase at noon, the Dauphine hands with their double satin-polish finish, the minute track dots, the elongated hour markers, the applied JL logo... On this perpetual calendar, the three counters display the date at 3 o’clock, the day of the week at 9 o’clock and the month at 6 o’clock.