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Lot No. 336 (91st Auction)
International Watch Co., Schaffhausen "The Big Aviator's Watch", Case No. 2958483, Ref. 5002, 46 mm, circa 2004

An aviator's large, almost as new and heavy automatic wristwatch with 7 day power reserve indicator and date - with original box, transport carton, operating instructions and guarantee card
Case: steel, screw back with engraving, anti-magnetic soft iron cup, screwed crown, IWC steel deployant clasp. Dial: black, luminous Arabic numerals, centre seconds, date indication, 7 day power reserve indicator, luminous leaf hands. Movm.: rotorwind movement with Pellaton winding, rhodium-plated, "fausses cĂ´tes" decoration, 42 jewels, Glucydur balance with cam type adjusting screws, Breguet balance spring, shock protection for balance.

The Big Aviator's Watch
Since 2002, the Big Aviator's Watch has been IWC's flagship. Its IWC-manufactured 51111 calibre - one of the largest automatic movements in the world - contains all the features that have proved their worth in the long history of IWC mechanical watches. Within no time at all, the automatic movement generates a power reserve of 8.5 days, but only runs for 7 before an ingenious little mechanism automatically stops it. This is because the torque that drives the movement decreases as the mainspring winds down, leading to a loss of amplitude in the balance and the unacceptable possibility of inaccuracy.
Source: https://www.iwc.com/index-de.asp, as of 26.02.2009
Estimate  6,500 - 7,500 €
This is a lot of a former auction!

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