Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Oct 31, 1998

LOT 254

B. Haas & Cie., No. 15598, Swiss, circa 1890. Very rare, double face, moon phase astronomical, keyless minute repeating, watch movement with perpetual calendar, wound by opening and closing the cover.

CHF 5,000 - 6,000

Sold: CHF 6,325

D. White enamel, on the front face, with Roman numerals, outer Arabic minute ring, sunk subsidiary seconds and moon phase aperture. White enamel chapter ring on the rear face, with dates and clays of the week. Gold "spade " hands. M. Nickel plated, 29 jewels, straight line lever escapement, cut bimetallic balance, blued steel Breguet balance spring. Repeating on gongs with slide in the band. Haas patented winding device by opening and closing the cover. Accompanied by copies of the original patents. Diam. 55mm.


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Grading System
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 2-01

Very good

HANDS Original

Notes

B. Haas invented a perpetual calendar mechanism, Patent No. 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 /or Inventions. Abridgements of .Sjaecifi(atiotts. Class 139, Watches, Clocks and Olhe> !'zntekeeJees. His Majesty's Stationery Office, London, 1905.). A watch of this type was sold by Antiquorum in April 1992, lot No. 215.