Perpetual Calendar

This spectacular collection comprises eight models, with two distinct styles. The first group with chronograph feature has dual retrograde indicators; the first shows the day of the week on the left and the other shows the date on the right. This group also features four small dials equally spaced and displaying Chronograph minutes at 3 o’clock, moon phase at 6 o’clock, chronograph hours at 9 o’clock, and month at 12 o’clock. There is also a

The second group of four are without chronograph features but have their tourbillon displayed. Each has a single retrograde indicator showing the date at the top of the dial, opposed by their flying tourbillon at the bottom. In this case, there are three small dials between 9 o’clock and 3 o’clock showing the day of the week at 9 o’clock, moon phase concentric with, but above, the main hand axis. Two even smaller dials at 4 and 6 o’clock that partially obscure those numerals.

The collection keeps the layout looking surprisingly simple, clean, and legible by using the large stylish Arabic numerals at the top and bottom of the dial that follow a circle larger than the width of the case. The numerals also increase in height “in the corners” at the 1, 5, 7, and 11 o’clock positions.

Each of the eight models has a characteristic domed elliptical, or barrel, shape with panoramic sapphire crystal.

From the manufacturer: With its mesmerizing mechanics, Franck Muller’s Perpetual Calendars perfectly combine ancestral tradition and great technique. The Perpetual Calendars display the day, the date, the month, the leap years, and the moon phase until the year 2100. Loyal to its reputation of Master of Complications, Franck Muller introduced the Perpetual Calendar Chronograph Bi-Retro, featuring a perpetual calendar, a chronograph, and many retrograde indications, which bring life and emotions into the timepiece. Attention to detail and sense of perfection are perfectly demonstrated in these beautiful timepieces, thanks to their hand-crafted movements and breath-taking dials.