Six Perpetual Calendar Timepieces That Stood Apart in 2019

Today, we wrap up our 2019 retrospective with six outstanding examples of that most complex of high complications, the perpetual calendar After teasing the concept at SIHH 2018, in June Audemars Piguet unveiled the production version of the Royal Oak Selfwinding Perpetual Calendar Ultra-Thin, the world's thinnest automatic perpetual calendar wristwatch at just 6.3 mm thickness Baume & Mercier's Clifton Baumatic Perpetual Calendar sees the addition of a perpetual calendar module to the base Baumatic movement, which was first introduced last year.

WHAT MAKES IT SPECIAL? "It's the best of the Gyrotourbillon, the best of the Minute Repeater, the best of the Perpetual Calendar - all the patents that we've received over the years - and yet miniaturized to the point where the watch is still wearable and elegant," says Stéphane Belmont, Jaeger-LeCoultre's heritage director Parmigiani Fleurier introduced the most complicated model yet in its recently revived Toric collection, the Toric Quantième Perpétuel Rétrograde - a perpetual calendar with a retrograde date and an ultra-precise moon-phase WHAT MAKES IT SPECIAL? From a technical standpoint, the watch is a perpetual calendar with perks.

Unveiled at SIHH 2019, this perpetual calendar from Vacheron Constantin claims to function closer to "In perpetuity" than any perpetual calendar that preceded it. . Source