Important Collectors’ Wristwatches Po...

Geneva, Hotel Des Bergues, Oct 21, 1995

LOT 612

B. Haas Jne & Cie., Genève, Paris, No. 15257, made for the Spanish or South American Market, circa 1890. Fine 18 ct. pink gold hunting cased, double face, keyless watch with anual patented perpetual calendar.

CHF 6,500 - 7,500

Sold: CHF 7,475

C. Four body, massive 'Bassine et filets' fully engraved with a formal decoration. D. White enamel on the front with Roman numerals, outer gilt Arabic minute ring and sunk subsidiary seconds. Gold "Louis XV" hands. White enamel chapter ring on the back with days of the week and outer date ring on the border of the bezel. Gold " lance" hands. M.19"' nickel plated, three-quarter plate, bearing the coat-of-arms of the Haas family, 18 jewels, counterpoised straight line lever escapement, cut bimetallic balance, Breguet balance-spring. Signed inside cover and inscription for the patented perpetual calendar inside the back In very good condition. Diam. 51 mm.


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Notes

The patent refers to the perpetual calendar system which allows the date to pass automatically according the month of 28, 30 or 31 days, but does not take into account the leap years.