Dial: black textured Calibre: cal. 8541B automatic, 23 jewels Movement number: 2'149'387Case: stainless steel and 14k yellow gold Case number: 2'274'685 Closure: stainless steel and 14k yellow gold IWC bracelet and folding clasp Dimensions: 38.5mm x 40mm, bracelet circumference approx. 195 mm Signed: case, dial and movement Accessories: none

MVT: is running at the time of cataloguing and date advancing. CASE: in very good condition overall. Some light oxidation and scuffs to the bezel as well as light surface wear to the rest of the case. DIAL: in very good condition overall. Very minor blemishes and some loss to the luminescent indexes which have clearly aged. The watch has not been tested to determine the accuracy of its timekeeping. Please note that Sotheby's does not guarantee the future working of the movement and that a service may be required at the buyer's discretion.
"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."

The Ingenieur SL 'Jumbo' was created by none other than the great Gérald Genta himself. Famous for designing the Royal Oak and the Nautilus, he was hired by IWC at the height of the quartz crisis in the mid-1970s. He subsequently helped the company to launch the 3rd generation of their Ingenieur-line, which was released in a radically different design. The cushion-shaped case features 5 distinct recesses in the bezel which are used to apply the screwing tools and further serve as decoration for the watch. Since the bezel was screwed on to a random position, the recesses on the bezel are aligned slightly differently on every watch, giving each one a somewhat different appearance. Rather than a commercial success it turned out to be difficult for IWC to sell these watches and it is estimated that less than 1'000 were ever sold.