November 25, 2019: Offering the country a mechanical solution of disconcerting purity, Ulysse Nardin has introduced a special edition of the Marine Chronograph Annual Calendar watch for India, in a striking version of Rose Gold & Steel. Simple to use with a correction forward and backward, this piece is imbued with the values of innovation, reliability and high-precision. Its UN-153 calibre is entirely manufactured in-house—including the Silicium balance-spring.
Halfway between a perpetual calendar, which doesn’t need correcting before the year 2100, and a simple calendar that requires five manual adjustments a year, the annual calendar is mechanically programmed for one year: it recognises months composed of 30 and 31 days, but not February. It therefore only needs to be corrected once a year.
But where classic devices involve up to thirty components, Ulysse Nardin has developed a system containing around only a dozen elements. Taking forward from the simple calendar developed for the UN-118 calibre, the annual calendar needed only three additional wheels.
The new UN-153 calibre beats at 28,800 vibrations per hour, proof of its extreme precision. The model also includes a chronograph feature.
An incarnation of the extraordinary history of the manufacturer, this limited edition of 50 pieces is equipped with the latest technological advances in chronometry, conveying the ever vibrant spirit of Ulysse Nardin.
