American Lady’s gold engine turned chronograph Circa 1890

Very fine lever with a monogram
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An engine turned  18 carat gold pocket watch. Fine engraved monogram ET on the back, no.71413. A precision lever movement with chronograph, circa 1890.
The bridge is signed, rare and very fine single-button chronograph with start, stop and reset by pushing the crown.
An original & enamel dial, chronograph register and red minutes, blued steel hands, dial with small peripheral imperfections, all together in very beautiful condition.
Probably the original box, very rare pocket watch.
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Diameter: 35 mm
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Weight: 37 g
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Signed: Tiffany & Co.  New York