Frederique Constant turned watch-world heads with the introduction of its first perpetual calendar timepiece, priced at an extremely competitive $8,795, back in 2016. At CoutureTime in Las Vegas this week, the Swiss brand rolled out two new versions, each with a new light gray dial, in stainless steel and rose-gold PVD cases.

For those who need a refresher, the movement of the Manufacture Perpetual Calendar, which is made in-house, measures just 6.7 mm thick, oscillates at a frequency of 28,800 vph, and consists of 191 parts, including 26 jewels. Carrying a power reserve of 38 hours, Caliber FC-775 is the result of a design and manufacturing process that used, according to the company, the ?latest technology? available in horology to make ?state of the art? and ?very precise? parts. The finishing, executed with CNC machines, includes perlage and circular côtes de Genève on the bridges and plates. The perpetual calendar functions powered by Caliber FC-775 are set and adjusted via inset buttons on the watch’s slim, 42-mm-diameter case. The button near 5 o?clock advances the moon-phase display (at 6 o?clock on the dial), while another near 8 o?clock is used to set the date of the week. A button at 10 o?clock advances the day and date (indicated on subdials at 9 o?clock and 3 o?clock, respectively) simultaneously. When you adjust the perpetual calendar, you?ll need to set the date first, followed by the day. Finally, the button near 11 o?clock adjusts the month and th...