Fine Watches
Fine Watches
Lange 31, unique piece, reference 831.042 F Montre bracelet en or rose sertie de diamants avec date et indication de réserve de marche de 31 jours | Pink gold diamond-set wristwatch digital date display and 31 days power reserve indication Vers 2007 | Circa 2007
Lot Closed
March 20, 03:29 PM GMT
Estimate
90,000 - 180,000 EUR
Lot Details
Description
A. Lange & Söhne
Lange 31, unique piece, reference 831.042 F
Montre bracelet en or rose sertie de diamants avec date et indication de réserve de marche de 31 jours |
Pink gold diamond-set wristwatch digital date display and 31 days power reserve indication
Vers 2007 |
Circa 2007
Cadran: blanc
Calibre: cal. L034.1 remontage manuel à clé, 62 rubis
Numéro de mouvement: 81'842
Boîtier: or rose 18K (750°/00), fond verre saphir sécurisé par 6 vis
Numéro de boîtier: 191'854
Fermoir: bracelet en alligator A. Lange & Söhne et boucle déployante en or rose 18K (750°/00)
Dimensions: 48 mm
Signé: boîtier, cadran et mouvement
Ecrin: oui
Papiers: oui
Accessoires: certificat de preuve d'origine, annual book 2008, manuel d'utilisation, clé de remontage et écrin avec surboîte A. Lange & Söhne
Dial: white
Calibre: cal. L034.1 key manual winding, 62 jewels
Movement number: 81'842
Case: 18k pink gold, sapphire display back secured by 6 screws
Case number: 191'854
Closure: A. Lange & Söhne alligator strap and 18k pink gold folding clasp
Size: 48 mm
Signed: case, dial and movement
Box: yes
Papers: yes
Accessories: A. Lange & Söhne proof of origin, annual book 2008, instruction manual, winding key and presentation box with outer packaging
Poids brut 232.30 g |
Gross weight 232.30 g
Launched in 2007, the Lange 31 Day power reserve is a technical tour de force. A relatively simple dial layout, with the distinctive oversized date windows, paying tribute to the Five-Minute Clock of the Semper Opera House in Dresden, time and small running seconds display are complimented by a power reserve calibrated to a remarkable 31 days. To achieve this, the hand wound caliber L034.1 featuring 62 jewels contains two mainsprings, one housed on top of the other that are both 1850 millimeters, 10 times longer than what is found in watches with conventions power reserves. Winding these mainsprings is not done via the crown as one would have expected, instead, the watch is supplied with a ratcheting winding key that connects to a port in the case back to manually wind the barrels. To ensure the smooth application of this astonishing power is a patented ‘constant force’ escapement with remontoire spring that ensure the uniform levels of torque are delivered.
This piece, however, is not any Lange & Sohne 31. This unique piece was delivered in 2016. It is lavishly decorated with 234 diamonds: 233 baquette diamonds and 1 brilliant for the crown, for a total of 17.9 carats. This exceptional work of setting decorates the bezel and the band of the case, including between the lugs, the front and side of the four lugs as well as the side and top of the crown. As always, Lange & Sohne paid the highest attention to details, for example with the superb rail-setting effect to the main case. They even went further with a thin line of horizontal baguette diamonds to ensure a smooth transition between the bezel and the band. The rendered effect is incredibly impressive.
Diamond-set Lange & Sohne watches are extremely rare as they represent only a tiny fraction of the total production, which is limited already. Most of these pieces only have their bezel and sometimes the top part of the lugs decorated with either brilliant or baguette diamonds.
This present lot belongs to another category. The work of setting present on this watch goes well beyond these other pieces. In fact, this lot might only know one other Lange & Sohne watch with a higher (mainly due to the diamond-set bracelet) level of precious decoration: the Tourbograph Pour le Merite delivered to Paris based retailer Dubai in 2009, a unique piece that retailed for 1.750.000 USD at the time.
Displaying superior quality both inside and outside, this unique piece is one of the most important Lange & Sohne ever produced.