Watches and Wonders 2025: A. Lange & Söhne Wows with Minute Repeater Perpetual

A. Lange & Söhne now introduces the Minute Repeater Perpetual, a watch that combines two of the most intricate haute-horlogerie complications— minute repeater and perpetual calendar— into one extraordinary timepiece, limited to just 50 pieces. True to the brand's tradition of excellence, a new movement was specifically developed for this rare and ambitious combination of complications. The aesthetics are just as stunning, with an in-house crafted black enamel dial that brings the complexity of the watch to life, displaying the numerous indications of the perpetual calendar. The 40.5mm platinum case ensures an impeccable sound quality with a crystal-clear tone.

A Symphony of Sounds

The minute repeater chimes the time to the minute on demand. The sound picture consists of a deep tone for the hours, a double strike for the quarter hours, and a brighter tone for the minutes. This highly sophisticated striking mechanism, made of 191 parts, involves the precise choreography of dozens of levers, gears, and wheels. Perfecting the sound of a minute repeater is an art in itself, requiring multiple disassemblies, rework, reassembly, and subsequent testing. All components are carefully adjusted to each other by a Lange master watchmaker.

The Minute Repeater Perpetual features a pair of differently tuned gongs and two hammers, which together offer a repertoire of 720 distinct chime sequences— one for every minute in the 12-hour cycle. Through the sapphire crystal caseback, one can observe the intricate “orchestra pit” of the watch's mechanism, showcasing the delicate striking of the elaborately finished black polished hammers on the gongs which are double-wrapped around the movement to increase the sound quality. However, the beauty of the minute repeater doesn't end with its acoustic and visual appeal. It also offers several important features and safety mechanisms. For example, the quiet mode eliminates the usual pause between hour and minute strikes. This function is activated when no double strike is made within the first 14 minutes after the full hour.

To protect the striking mechanism from potential damage, the movement is equipped with a safety feature preventing the minute repeater from operating when the crown is pulled out. Moreover, the patented hammer lock ensures that the hammers remain in their starting position for a fraction of a second after striking, preventing any aftershocks that could cause them to strike the gongs again.

A Perpetual Calendar with fascinating details

While the minute repeater chimes the current time, the perpetual calendar’s technical brilliance extends into the distant future. This meticulously designed calendar mechanism ensures the accurate display of the day, date, and month, factoring in leap years. The calendar will not require adjustment until March 1, 2100, when, according to the Gregorian calendar, a leap year will be skipped. Similarly, the moonphase display is also programmed with extreme precision, accurate to 122.6 years. Despite its complexity, the operation of the calendar is remarkably simple: all calendar functions can be adjusted via a single push-button.

Aesthetic Excellence and Craftsmanship

The immaculate, matte-black enamel dial provides a sophisticated backdrop for the displays, including the manufacture's signature large-date indication. At 9 o'clock, a subdial shows the weekday and day/night indicators; at 3 o'clock, the month and leap year indications are displayed. At 6 o'clock, another subdial indicates the small seconds and the beautifully crafted moon phase, consisting of two highly polished, slightly domed white-gold moon disks, surrounded by an entourage of 100 hand-engraved stars. All four dial sections are embellished with a circular lesene, a fine border in white gold. On the main dial, it runs between the outsize date and the Roman numerals; on the subsidiary dials, the lesenes separate the inner display sections from the outer ones.

The movement, the hand-wound L122.1 caliber, is finely finished according to the highest standards of horological craftsmanship. Beating at a frequency of 21,600 vibrations per hour (3 Hz), it movement provides a 72-hour power reserve stored in a single barrel. Composed of over 600 parts, every component—whether visible or hidden—is meticulously hand-finished in accordance with Lange's standards. Among its aesthetic highlights is the engraved balance cock and the swan-neck regulator that is mounted on it.

The Minute Repeater Perpetual is limited to just 50 pieces and will be exclusively sold in select A. Lange & Söhne boutiques. The price is available upon request.

To learn more, visit A. Lange & Söhne, here.