Introducing A. Lange & Söhne 1815 Rattrapante Perpetual Calendar : A Harmonious Fusion of Complications and Elegance

A. Lange & Söhne, renowned for their mastery of horological complications, presents the extraordinary 1815 RATTRAPANTE PERPETUAL CALENDAR—a timepiece that brings together three of the most intricate complications within a classic and refined design. Limited to just 100 pieces, this exceptional watch showcases the rare combination of a split-seconds chronograph and a perpetual calendar, encased in 18-carat white gold with a captivating pink-gold dial. With its precise timekeeping capabilities and exceptional craftsmanship, the 1815 RATTRAPANTE PERPETUAL CALENDAR sets new standards in both short-time measurement and calendar displays.

Captivating Complications:

The 1815 RATTRAPANTE PERPETUAL CALENDAR embodies one of the greatest challenges in horology—the rattrapante function. In addition to the conventional chronograph features, this sophisticated complication measures intermediate and comparative times, as well as minimum and maximum values within a minute. Powered by the exceptional manufacture calibre L101.1, this timepiece achieves remarkable accuracy, with the balance wheel beating at an impressive six semi-oscillations per second. The peripheral minute scale enhances precision, allowing high-accuracy readings.

Exquisite Craftsmanship:

The meticulously orchestrated movement of the 1815 RATTRAPANTE PERPETUAL CALENDAR can be admired through its sapphire-crystal caseback. Employing the classic two-column wheel transmission, the watch precisely controls the measurement of stopped and intermediate times. True to A. Lange & Söhne's tradition of excellence, every moving part showcases technical intricacy combined with exceptional artisanship. Straight graining adorns the upper surfaces of all components, while polished peripheral chamfers demonstrate the skillful touch of experienced finisseurs.

Perpetual Calendar: A Testament to Timekeeping Ingenuity:

The 1815 RATTRAPANTE PERPETUAL CALENDAR's perpetual calendar complication is a testament to its "long-term memory." This remarkable mechanism ensures the accurate display of date, day of the week, and month—every single day, for decades, even accounting for leap years. The calendar only requires correction by one day on March 1, 2100, when the Gregorian calendar skips a leap year. The moon-phase display, programmed with utmost precision, emulates the synodic orbit of the Earth's satellite so faithfully that it would take 122.6 years for the display to require adjustment by a single day.

Aesthetically Pleasing Harmony:

The 1815 RATTRAPANTE PERPETUAL CALENDAR captivates not only with its technical prowess but also with its beautifully arranged dial. Showcasing an 18-carat pink gold dial, it becomes the third A. Lange & Söhne timepiece, following the DATOGRAPH PERPETUAL TOURBILLON (2019) and the LANGE 1 PERPETUAL CALENDAR (2021), to feature this warm and captivating hue. The pink gold dial gracefully contrasts with the cool white gold of the case. Embracing the essence of the 1815 watch family, the dial exhibits a traditional railway-track minute scale, Arabic numerals, and a harmonious arrangement of four subsidiary dials.

With the launch of the 1815 RATTRAPANTE PERPETUAL CALENDAR, A. Lange & Söhne once again pushes the boundaries of watchmaking excellence. This remarkable timepiece, combining a split-seconds chronograph and a perpetual calendar, exemplifies the brand's commitment to precision, craftsmanship, and timeless elegance. Limited to only 100 pieces, the 1815 RATTRAPANTE PERPETUAL CALENDAR is destined to become a cherished treasure for discerning watch enthusiasts who appreciate the harmony of technical mastery and aesthetic allure.