The Longitude at the Eve of the Third...

Geneva, Hotel Des Bergues, Oct 23, 1999

LOT 170

Girard-Perregaux, Chaux-de-Fonds, No. 63997,circa 1880.Very fine and rare 18K gold hunting cased, double face, moon phase, astronomical, keyless watch with triple calendar, Patented by Courvoisier Jonais on June 27, 1871, No. 122.

CHF 16,000 - 20,000

C. Five body, massive, "bassine et filets carrure ronde", polished, the cover engraved with the monogram"R. S.". D. White enamel on the front with Roman numerals, outer minute ring and sunk subsidiary seconds. Gold paste-set hands. White enamel on the rear face, the dates on the border with moon phase aperture and subsidiary dials for the months and the days of the week. M. 18''' nickel plated, 17 jewels, gold wheel train, counterpoised straight line lever escapement, cut bimetallic balance, Breguet balance spring. Hinged nickel plated calendar work driven by the movement.Signed on the dial, case, movement and calendar work.Courvoisier Jonais coat-of-arms punched on the movement.Diam. 56 mm.


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Grading System
Grade: AAA

Excellent

Case: 3

Good

Movement: * 4 - 5
Dial: 3 - 01

Notes

A similar watch without the phases of the moon, also punched with the Courvoisier Jonais coat-of-arms, was sold by Antiquorum, Geneva, April 1996, lot 491.