23,000 CHF
Albert Potter & Co. , Geneva, No. 486, circa 1880.Very rare, fine possibly unique, 18K gold, moon phase astronomical watch with unusual perpetual calendar. , gold, glazed, deta-chable cuvette. D. White enamel with Roman numerals, outer Arabic minute ring, moon phase aperture and sunk subsidiar White enamel with Roman numerals, outer Arabic minute ring, moon phase aperture and sunk subsidiary seconds with inner perpetual calendar showing only the date, with the small hand automatically jumping from the last day of the month to the first of the next, whether it is a month of 28, 29, 30 or 31 days. Blued steel "spade" hands. Notes The watch incorporates an ingeniously simple perpetual calendar mechanism, which displays only the date. The mechanism "knows", although it does not display it, how many days are in each month and when it is leap year. This is an extremely rare feature in watches.
Auctioneer:
Antiquorum
Date:
2002-11-16
