Important Collectors’ Wristwatches, P...

New York - The Fuller Building, Jun 14, 2007

LOT 137

"Datograph" A. Lange & Söhne, Glashütte i. Sa., "Datograph", No. 33987, case No. 152048, Ref. 403.031. Production of the "Datograph" started in 2000. Very fine, 18K pink gold gentleman's wristwatch with square button fly-back chronograph, register, tachometer, oversized date and an 18K pink gold A. Lange & Söhne buckle. Accompanied by a fitted box and certificate.

USD 25,000 - 30,000

EUR 18,000 - 22,000

Sold: USD 31,860

C. Three-body, solid, polished and brushed, rounded bezel, transparent case back with 6 screws, push button on the band for the date correction, sapphire crystals. D. Black, made from solid silver, applied pink gold Roman numerals, baton indexes and luminous dots, subsidiary silver dials for the 60-seconds and 30-minute registers, outer tachometer graduation, below 12 double aperture for the oversized date. Luminous pink gold "alpha" hands. M. Cal. L 951.1, Glashütte 3/4 plate, maillechort, "fausses côtes" decoration, 40 jewels including 4 in screw-mounted gold chatons, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, selfcompensating Breguet balance spring, "swanneck" micrometer regulator, hand-engraved balance bridge. Dial, case and movement signed. Diam. 39 mm. Thickness 13 mm. Property of a West Coast Collector


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Grading System
Grade: AA

Very good
Case: 2

Very good
Movement: 1

As new
Dial: 1-01

As new

HANDS Original

Notes

Datograph The Datograph made a strong impression on watch enthusiasts and collectors when it debuted at the Basel fair in 2000. The excellent reputation A. Lange & Söhne had regained with their Lange 1 and Langematik watches carried on with the new chronograph: A fly-back function, the famous Lange oversized date, Glashütte 3/4 plate all in combination with features rare in modern watch movement design: A column wheel mechanism to govern the chronograph functions, screwed gold châtons for several jewels; a separate bridge for the fourth and for the escape wheel, and a balance oscillating at a speed of 18,000 vibrations/hour like in the famous Lange pocket watch chronographs. There were also more subtle features and qualities: A minute counter hand jumping precisely, when the sweep-second hand passed the 60 seconds, adjusted by a switching lever, and a polished steel plate for the escape wheel jewel. The Datograph consists of 390 individual parts, all hand-finished to fit together precisely for reliable timekeeping and performance. Besides the technical accomplishments and high quality, it is also a quite beautiful timepiece. For a note on the Fly-back system, see opposite page.