Swiss repeater with stoppable independent seconds Circa 1873

Gold open faced chronograph attributed to Louis Audemars
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A Swiss very fine, heavy minute repeating tandem winding gentleman’s pocket watch with stoppable independent jumping quarter seconds Seconde Foudroyante and chronograph, circa 1873.
18 carat gold, tiered, polished, à goutte case with pusher for chronograph at “1 and 11”, slide for repeating mechanism and glazed movement. Signed enamel dial with Arabic numerals, sunk subsidiary dial for the quarter seconde foudroyante, split seconds and blued spade hands. Bridge movement, ébauche: attributed to Louis Audemars, rhodium plated, with Geneva Striping decoration, two hammers, two gongs, tandem winding with click works for two barrels, gold train, gold screw compensation balance and counterpoised lever.
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Diameter: 54 mm
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Weight: 162 g
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Signed: Tiffany & Co., New York
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This exceptional and very rare timepiece by Louis Audemars is not only outstanding due to the perfect quality of its train and its repeating mechanism, it has also been fitted with an elaborate rattrapante mechanism (without return to zero) beneath the dial and Audemars’ quarter second jump complication. The small depression in the middle of the gold repeater slider was another one of Louis Audemars distinguishing features.
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Seconde foudroyant is a hand that completes one full revolution per second.
A rattrapante chronograph has two chronograph seconds hands which can be stopped independently.