A. LANGE & SÖHNE. A PLATINUM PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH WRISTWATCH WITH MOON PHASES, POWER RESERVE AND LEAP YEAR INDICATION
A. LANGE & SÖHNE. A PLATINUM PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH WRISTWATCH WITH MOON PHASES, POWER RESERVE AND LEAP YEAR INDICATION
A. LANGE & SÖHNE. A PLATINUM PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH WRISTWATCH WITH MOON PHASES, POWER RESERVE AND LEAP YEAR INDICATION
A. LANGE & SÖHNE. A PLATINUM PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH WRISTWATCH WITH MOON PHASES, POWER RESERVE AND LEAP YEAR INDICATION
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> Some watches are pictured with straps made of en… Read more
A. LANGE & SÖHNE. A PLATINUM PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH WRISTWATCH WITH MOON PHASES, POWER RESERVE AND LEAP YEAR INDICATION

1815 RATTRAPANTE PERPETUAL CALENDAR MODEL, REF. 421.025

Details
A. LANGE & SÖHNE. A PLATINUM PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH WRISTWATCH WITH MOON PHASES, POWER RESERVE AND LEAP YEAR INDICATION
1815 RATTRAPANTE PERPETUAL CALENDAR MODEL, REF. 421.025
Movement: Manual
Dial: Silvered
Case: 42 mm.
With: Platinum A. Lange & Söhne deployant clasp, undated A. Lange & Söhne Guarantee seal, setting pin, product literature, leather holder, presentation box and outer packaging
Remark: In unworn condition
Special Notice
> Some watches are pictured with straps made of endangered or protected animal materials such as alligator or crocodile. These endangered species straps are shown for display purposes only and are not for sale. Christie’s will remove and retain the strap prior to shipment from the sale site. At some sale sites, Christie’s may, at its discretion, make the displayed endangered species strap available to the buyer of the lot free of charge if collected in person from the sale site within 1 year of the date of the sale. Please check with the department for details on a particular lot. > Prospective purchasers are advised that several countries prohibit the importation of property containing materials from endangered species, including but not limited to coral, ivory, tortoiseshell and crocodile. Accordingly, prospective purchasers should familiarize themselves with relevant customs regulations prior to bidding if they intend to import this lot into another country.

Brought to you by

Alexandre Bigler
Alexandre Bigler SVP, Head of Watches, Asia Pacific

Lot Essay

The 1815 Series
The name of the 1815 watch family is a reference to the year Ferdinand Adolph Lange was born. The present watch, the 1815 Rattrapante Perpetual Calendar, unites two refined classic complications in a wristwatch: a rattrapante-chronograph and a perpetual calendar with a moon-phase display. The ultimate combination of complications.

The Rattrapante Function
Rattrapante, roughly translating from French to “Catch up” is a chronograph movement with an additional seconds hand for the chronograph function superimposed over the normal seconds hand and an additional pusher. The first wrist chronographs with rattrapante hands emerged around 1912, and the movement was largely confined to pocket watches. In the 1930s, the movement was eventually miniaturized and the first serially produced basic movements with a split-seconds function were introduced in the 1940s. In 2004, Lange presented the double rattrapante chronograph: the DOUBLE SPLIT, the first of its kind in precision watchmaking. The watch featured two minute counters, and extended the range for lap-time measurements from 60 seconds to 30 minutes. In 2018, the TRIPLE SPLIT debuted and with the addition of a third, separately stoppable hand pair, the chronograph and rattrapante functions can now be used for measurements that last up to 12 hours. The challenge in creating this watch is the combination of two of the most popular complications among watch connoisseurs - the perpetual calendar and the split-second chronograph, while keeping the watch structured in a sizable manner. Another remarkable feature of the movement is the usage of its two column wheel chronograph mechanism for both its chronograph hands. Creating such a mechanism is very labour intensive but it enables the pusher action to run smoothly in comparison to other chronograph watches.
Not only is this watch aesthetically pleasing because of its classically beautiful dial with blue hands, it is also well-crafted and displays perfection in the art of Saxony watchmaking.

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