An Unusual 18 Karat Yellow Gold and Tortoiseshell Wristwatch, Jaeger LeCoultre for Cartier, 20.00 x 15.00 mm case dimensions, matte silvered dial signed Cartier Jaeger LeCoultre, Roman numerals, index hands, rectangular case with beveled bezel and extended loop lugs, crown in the outer band at 6 o'clock, snap on case back, Cal. 840 manual wind 17 jewel movement signed LeCoultre & Co., removable link bracelet composed of fluted gold and curved tortoiseshell sections joined by squared links with rounded corners, embossed JL maker's mark at clasp.Inner case back stamp: 1670 (Swiss assay marks) 0,750.Case back stamp: 20342 A 1114708 (scratch mark BE11-1256).Bracelet stamp: 750 (maker's mark). 34.30 dwts.