Important Modern & Vintage Timepieces
New York, Sep 30, 2015
TIFFANY & CO. SPLIT-SECONDS CHRONOGRAPH YELLOW GOLD Tiffany & Co., No. 7540. Made circa 1910. Very fine and rare, 18K yellow gold, keyless, pocket watch with split- seconds chronograph.
Four-body, "bassine," split-second chronograph push-button at 11 o'clock, hinged gold cuvette, case back centered by an engraved crest. White enamel with black Breguet numerals, outer 1/5th seconds track with 5-second red Arabic markers, sunk subsidiary seconds dial. Blued steel spade hands. Cal. 40 mm.(16 1/2```), nickel, bar caliber, 21 jewels, straight-line calibrated lever escapement, cut bimetallic compensation balance with Breguet balance spring, swan-neck micrometer regulator.