Important Collectors’ Wristwatches, P...

New York - The Fuller Building, Jun 14, 2007

LOT 138

"Datograph" A. Lange & Söhne, Glashütte i. Sa., "Datograph", No. 26244, case No. 139960, Ref. 403.035. Production of this reference started in 2000. Very fine and rare, platinum gentleman's wristwatch with square button fly-back chronograph, register, tachometer, oversized date and a platinum A. Lange & Söhne buckle. Accompanied by a fitted box and certificate.

USD 30,000 - 40,000

EUR 22,000 - 30,000

Sold: USD 33,040

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 white gold radial Roman numerals, baton indexes and luminous dots, subsidiary silver dials for the 60-seconds and instantaneous 30-minute registers, outer tachometer graduation, below 12 aperture for the oversized date. Luminous white 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, straightline 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. 38 mm. Thickness 13 mm. Property of an East Coast Collector


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Grading System
Grade: AA

Very good
Case: 3-9

Good

Scratched
Movement: 2

Very good
Dial: 1-01

As new

HANDS Original

Notes

Fly-back or "Retour en vol" refers to the instantaneous fly-back feature of the chronograph sweep second hand. On a regular chronograph, this hand can only be reset to zero, after it has been stopped by a push of the stop button, but a fly-back mechanism allows resetting the hand to zero whilst still in motion by a single push on the lower chronograph or reset button. Therefore the process of timing an event can be immediately resumed. This feature was especially useful in early aviation, allowing a pilot to safe time and devote his full attention to flight maneuvers. For a note on the Datograph, see opposite page.