Cartier

• manual winding lever movement, 19 jewels • off-white dial, black Roman numerals, inner minute-track, blued steel moon hands • platinum Tank case, cabochon sapphire-set crown, 18k yellow gold back secured by four screws engraved '7.4.31' • movement signed European Watch & Clock Co • with an integrated platinum brick link bracelet with a yellow and pink gold deployant buckle

The movement is running at time of cataloguing, The dial has discoloration which is consistent with age. Dials with cracks and chips to the centre around the arbour and also at the top right hand corner and by X. Cracks to the corners of the dial.. The case is in a fair condition considering its age, it has minor scratches and scuffs throughout the case and bracelet. The case has been polished but the dog-head hallmark is still somewhat visible. The 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.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. All dimensions in catalogue descriptions are approximate. Condition reports may not specify mechanical replacements or imperfections to the movement, case, dial, pendulum, separate base(s) or dome. Watches in water-resistant cases have been opened to examine movements but no warranties are made that the watches are currently water-resistant. Please note that we do not guarantee the authenticity of any individual component parts, such as wheels, hands, crowns, crystals, screws, bracelets and leather bands, since subsequent repairs and restoration work may have resulted in the replacement of original parts. 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. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. In particular, please note it is the purchaser's responsibility to comply with any applicable import and export matters, particularly in relation to lots incorporating materials from endangered species.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."

**Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) are not sold with the watches and are for display purposes only. We reserve the right to remove these bands prior to shipping."

Accompanied by a Cartier Certificate of Authenticity dated 7th of September 2011, confirming the present watch was made with its platinum bracelet in 1930. 

The Tank collection is a tribute to the military tanks of World War I designed by Louis Cartier, who was fascinated by these machines. The shape of a Tank wristwatch is inspired by the shape of the tank when viewed from above: a square flanked by two shafts representing the body and tracks. 

A similar Tank model is illustrated Barracca, J, Negretti G., Nencini, F., Le Temps de Cartier, p. 207.