Live Auction 16128Important Watches and Private Collections
A. LANGE & SÖHNE. A FINE AND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATE AND HACK FEATURE
Lot 2414 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

Closed28 May 2018

Price Realised

HKD 687,500

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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

Specialist note

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.