Rectangular, the top inset with a panel of onyx, the exterior applied with a geometric pattern in white enamel, the hinged front with rose diamond handles opening to reveal a square dial of white guilloché enamel with blued steel hands within a Roman numeral border, to an onyx base, measuring approximately 60 x 30 x 37mm, dial signed Black, Starr & Frost, case numbered, French assay and maker's marks.

Cf.: Judy Rudoe, Cartier 1900 - 1939, British Museum, 1997, pg. 132 nos. 70 and 71, for two desk timepieces of similar design made in France for Cartier New York or London, dated circa 1928.

Please note that this watch was not tested for the accuracy of time or duration of the power reserve and may need service at the buyer's discretion. Please note that Sotheby's does not guarantee the future working of the movement. Stamped with French assay marks for 18 carat gold and maker's marks C.D. with flower to interior of doors to reverse. Reverse of case stamped Cadran Breveté, Made in France and numbered 28849. Dial signed Black, Starr & Frost. Movement running at the time of cataloguing. Manual winding. The dial is refinished, the white enamel has some discoloration and black dots commensurate with age, the glass has some very light surface scratches. The case has some very light surface wear and some white enamel loss. The onyx on the top panel and base have very light scratches and chips to surface commensurate with age. Diamonds are bright and lively. Hinge is in a good working order, closes securely. In good Condition. With associated box from Van Cleef and Arpels.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Please note that colour, clarity and weight of gemstones are statements of opinion only and not statements of fact by Sotheby's. We do not guarantee, and are not responsible for any certificate from a gemological laboratory that may accompany the property. We do not guarantee that watches are in working order. 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. Prospective buyers should also refer to refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue, in particular to the Notice regarding the treatment and condition of gemstones.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

The configuration of additional, larger Roman numerals lining the dial and extending across the interior of the hinged doors of the present timepiece was an innovation patented by J. Vergely of Paris in 1925, designed to make the time easier to read.