Important Collectors’ Wristwatches, P...

New York, Dec 05, 2007

LOT 31

Lindbergh - Hour Angle Watch Longines, No. 5446895, invented by Col. Chas. A. Lindbergh, US Pat. 1923305, launched in 1932. Very fine and very rare, hour angle, ?Staybrite? stainless steel aviator's wristwatch with indirect center-seconds system and 2 crowns. To be sold without reserve

USD 1,000 - 1,500

EUR 700 - 1,000

Sold: USD 2,832

C. Three-body, polished, revolving silver bezel with the enameled 15 degree graduations in black and green Arabic numerals, graduated rounded band, the crown at 2 activates the central revolving dial. D. Matte silver with painted radial Roman numerals, at the center, revolving 60-seconds dial in black Arabic numerals. Blued steel feuille hands. M. Cal. 12.68 Z, rhodium-plated, 15 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel flat balance spring. Dial and movement signed, case numbered. Diam. 33 mm. Thickness 12 mm. Property of Various Owners


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Grading System
Grade: AA

Very good
Case: 3-7

Good

Oxidized
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-30-01

Good

Alterations

HANDS Original

Notes

The hour angle system was invented by Philippe Vanhorn Weems of the Annapolis Naval Academy, a flight authority in the 1920s and 30s. He trained the famous Charles A. Lindbergh, who set the record for the first non-stop transoceanic flight.