A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE
A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE
A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE
A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE
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> Some watches are pictured with straps made of en… Read more PROPERTY FROM AN IMPORTANT PRIVATE COLLECTION
A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE

SIGNED A. LANGE & SÖHNE, MONATS-WERK, GLASHÜTTE I/SA, LANGE 31, REF. 130.025, MOVEMENT NO. 80'091, CASE NO. 191’809, CIRCA 2012

Details
A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE
SIGNED A. LANGE & SÖHNE, MONATS-WERK, GLASHÜTTE I/SA, LANGE 31, REF. 130.025, MOVEMENT NO. 80'091, CASE NO. 191’809, CIRCA 2012
Movement: Cal. L 034.1, manual, 62 jewels, signed
Dial: Signed
Case: Glazed display back secured by 6 screws with aperture for winding mechanism, 46 mm. diam., signed
With: Platinum A. Lange & Söhne deployant clasp, undated International Guarantee, instruction manual, two winding tools, product literature, presentation box and outer packaging
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.

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Lot Essay

The revolutionary Lange 31 is the first mechanical wristwatch with a power reserve of 31 days. The exceptionally high power reserve can assure high rate stability and consistent rate accuracy for an entire month. The watch features a key winding mechanism of historic pocket watches and can be wound with a stainless steel winding key through an aperture to the case back. This particular winding mechanism generates much more torque than would be possible with a crown. In order to prevent over tightening of the springs, this complex movement features a built-in torque limiting mechanism and a backstop ratchet that slows down the key when it is turned anti-clockwise.

The Lange 31 attests to the fine craftsmanship, technical excellence as well as aesthetic qualities at A. Lange & Söhne, making it a highly sought-after collector's watch.

Consigned by an important private collector the present watch is offered here in extremely good overall condition.


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