Two diamond wristwatches and a diamond brooch, One watch by Cartier, 1920s

The first watch with rectangular dial, black Roman numerals and blued steel hands, framed by rose-cut and baguette diamonds weighing approximately 1.25 carats, mounted in platinum and 18 karat gold, completed by 14 karat white gold mesh straps, length 6½ inches, dial signed Cartier, movement by European Watch & Clock Co., Inc.;  the second watch with circular dial, black Arabic numerals and blued steel hands, the bezel and lugs set with old European-cut and single-cut diamonds weighing approximately 1.00 carat, mounted in platinum, completed by a gray grosgrain ribbon strap with 18 karat white gold clasp, adjustable length, movement by C.H. Meylan; the navette-shaped brooch decorated with a spray of florettes, set with 80 old European-cut and single-cut diamonds weighing approximately 2.00 carats, mounted in platinum. 

All pieces are in good general condition with surface wear to the metal. The Cartier watch is presently running, manual movement by European Watch & Clock Co., Inc., original to the piece, numbered 431432, the case is numbered 431432 and 24936B on the outside. Diamonds are of decorative quality Minor discoloration to dial. The second watch has a manual movement, presently running, signed C.H. Meylan. The inner case back is signed A.W.C. Co. 205250. Diamonds are of decorative quality. Grosgrain ribbon band is soiled, but intact. Both movements could use cleaning and overhaul. See conditions of sale regarding watches on page 272 of the catalogue. Diamonds in the brooch are approximately G-I color and VS-SI clarity. It likely dates from 1935-40.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.