The rectangular bluish-gray agate dial within nephrite supports, the rectangular base with black enamel chapters, red enameled hands and center of geometric design to the ribbed side panels with black enamel door to the back opening to winder and movement, all accented with cabochon coral studded detail, signed Boucheron, Paris, movement signed Vacheron Constantin, numbered 407563, with French assay and maker's marks; circa 1928.

Christie's Paris, Bijoux Signés, June 17, 1998, lot 345.

Pierre Kjellberg, Encyclopédie de la Pendule Française, Les Editions de L'Amateur, 1997, page 502.

Gilles Neret, Boucheron: The Jeweller of Time, page 102.

In very good condition, especially considering age. The manual movement, currently running, is signed Vacheron & Constantin, 17 jewels, five 5 adj. Straight line lever escapement movement with cut bimetallic compensation balance, with Breguet balance spring. The clock's hardstone components remain intact, with crisp edges. The agate body is more slate blue colored than pictured in the printed catalogue. Some discoloration and minor denting to the gold elements at the sides and base of the clock. A retailer's plaque for Boucheron is applied to the reverse. Maker's marks for Verger Freres and assay marks found on the side of the gold elements flanking the clock. Accompanied by a fitted black leather presentation box signed Boucheron, finished in black velvet and satin. 5 x 5 5/8 x 2 inches. Verger Freres and Vacheron & Constantin worked together from 1880 to 1930. Verger Freres was the known Paris representative for Vacheron & Constantin. Please see Important Notice Regarding Condition of Watches on page 349 of the printed catalogue.
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.

Accompanied by a photocopy of  'Extrait d'Archives' No. 0051 from Vacheron Constantin.

Potential bidders who intend to export this lot are advised that certain permits are required for export. If you are interested in this lot, please contact the Jewelry Department before bidding.