The Longitude at the Eve of the Third...

Geneva, Hotel Des Bergues, Oct 23, 1999

LOT 245

Swiss, circa 1890.Fine and rare, 18K pink gold, hunting casedwatch with the famous Remontoire perpétuel à décrochement, keyless cover winding, patented byB. Haas Jne. & Cie, Genève-Paris, on July 13, 1867, No. 77124.

CHF 1,800 - 2,200

Sold: CHF 2,185

C. Four body, massive, "bassine et filets", engine-turned. Hinged gold cuvette. D. White enamel with Roman numerals, outer Arabic minute ring and sunk subsidiary seconds Gold "spade" hands. M. 17''', nickel plated, wound by opening and closing the cover,15 jewels, counterpoised straight line lever escapement, cut bimetallic balance, Breguet balance spring. Haas patented winding device by opening and closing the cover.Accompanied by copies of the original patents.Diam. 50 mm.


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Grading System
Grade: AA

Very good
Case: 4 - 14
Movement: * 4 - 5
Dial: 4 - 6 - 01

Notes

B. Haas invented a perpetual calendar mechanism, PatentNo. 2870 from September 30, 1872, and a form of winding where the mainspring was wound by opening the front cover of a hunting cased watch. Patent 3945 from December 2, 1873. (Patent for Inventions. Abridgements of Specifications. Class 139, Watches, Clocks and Other Timekeepers. His Majesty's Stationery Office, London 1905).