Invented in the 18th century, the perpetual calendar is based on the Gregorian calendar, decreed by Pope Gregory XIII in 1582. It automatically accounts for the 28, 30 and 31-day months, as well as the addition of the 29th of February during leap years.
Among the most difficult complications to achieve, the perpetual calendar is a marvel of micromechanics, representing both a technical challenge for a watchmaker and an inexpressible emotion for any lover of beautiful timepieces.
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Meanwhile, among the Jaeger-LeCoultre watches with perpetual calendars, the Master Ultra Thin Perpetual is the most iconic model. With its remarkable proportions, this watch offers a clear reading of the perpetual calendar, featuring the month, date, day of the week and year, as well as its power reserve and day/night indicator.
With a thickness of only 9.2 mm, the model’s stainless steel case houses an ultra-thin movement of great sophistication, representing the multiple skills of the Grande Maison named Jaeger-LeCoultre Calibre 868/1. This self-winding movement is beating in 18800 vibrations per hour and has perpetual calendar and moon phases function.
Comes with a deep black, sunray-brushed dial, the watch features an original characteristic and strong design, which extends to the alligator-skin strap of the same colour. The golden-brown moon appears with equal intensity at 12 o’clock.
Three counters of identical dimensions display the perpetual calendar functions: the day of the week at 9 o’clock, the calendar at 3 o’clock, and the month at 6 o’clock. Above the dial, a discreet moon phase indicator pursues its progression, displaying the ever-changing lunar profile in its wake.
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From the very first glance, the black of the dial and strap entices and intrigues. The Master Ultra Thin Perpetual steel model offers watch lovers a perpetual calendar in an ultra-thin exterior shrouded in deep colours. Find out more about this collection at your nearest The Time Place Boutique.