What was once a limited-edition release at the Watch Art Grand Exhibition Tokyo in 2023, the Quadruple Complication (Ref. 5308G-001) has entered the fray of Patek’s permanent catalogue. Featuring a minute repeater, a split-seconds chronograph with two patented mechanisms, and a perpetual calendar, this watch makes a staggering statement at 42mm in diameter and a substantial 17.71mm thickness. Yet, given its status as one of the maison’s most technologically impressive timepieces to date, its heft is understandable.
With so many complications, legibility was paramount in designing the dial. An icy baby-blue sunburst finish provides the backdrop, lending a modern edge with its satin appearance—its delicate lightness offsetting the watch’s bold proportions. The white gold case further enhances its silky elegance.
The perpetual calendar’s day, date, and month windows are displayed in a sweeping arc between 10 and 2 o’clock. Meanwhile, the split-seconds chronograph—a complication widely regarded as one of the three most difficult to produce (the other two are perpetual calendars and minute repeaters)—features 60-minute and 12-hour counters at 3 and 9 o’clock, respectively. This integration posed the greatest challenge for Patek, requiring two new patents to perfect. At 9 o’clock, a slide activates the minute repeater, where two gongs hammer out Patek’s signature chime.

With complications aplenty, one can imagine the mechanical ballet unfolding within—but fortunately, we don’t have to. The self-winding calibre R CHR 27 PS QI, in all of its dynamic beauty, is visible through the sapphire caseback. Though it is also interchangeable with a solid white gold one if you so choose.