Antiquorum Auctioneers since 1974

Important collector's watches, wristw...

Hotel Richemond, Geneva, Apr 13, 2002

LOT 304

Longines, Aero, No. 5810648, Swiss, circa 1938. Fine aluminum siderograph made for the Marine Nationale Aeronotique Navale with centre seconds, double split-seconds recorder, 30-hour power reserve indication and stop feature.

CHF 10,000 - 15,000

EUR 7,000 - 10,000 / USD 6,000 - 9,000

C. Cylindrical, massive, back secured by five screws, chronograph pushbutton at 2 o?clock, knob for setting 60 seconds revolving dial at 11 o?clock, winding/setting stem at 6 o?clock, stop lever at 5 o?clock. D. Two tone silvered divided into 360 degrees with outer revolving chronograph ring, inner red decimal division and up-and-down sector at 6 o?clock. M. 43 mm (19???), rhodium-plated, ?fausses-côtes? decoration, 19 jewels, straight line lever escapement, monometallic balance, self-compensating Breguet balance spring with micrometric cam-type regulator. Split-seconds recorder with visible work. Signed on the dial, case and movement. Diam. 94 mm.


LOADING IMAGES
Click to full view
Image
Grading System
Grade: A

Good
Case: 3

Good
Movement: 3*

Good

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

Good

HANDS Original

Notes

A siderograph is an instrument combining a clock and a navigation instrument which keeps a reference time equivalent to the time at 0° Greenwich longitude. It used to be quite helpful for pilots. Longines? version stemmed from the one designed in cooperation with Charles A. Lindberg around 1930.