In 1947, the efforts that Vacheron Constantin had devoted for several years to the improvement of precision were crowned with success. The company presented a special group of watches, all with tourbillon regulators, and all adjusted by the master adjuster E. Olivier, for the 1946 and 1947 Timing Contest. The results surpassed all expectations: the first three places in 1947 were taken by Vacheron Constantin, and the all-time record was broken,with 883.8 points. In particular, the record that Paek Philippe had held for 13 years, since 1934, was broken. Out of the 30 first places, Vacheron Constantin took half the prizes. All the watches were identical - extremely high-grade tourbillon regulators, made entirely in the factory, superbly adjusted by Olivier, with his innate genius, aided by the skill acquired through years of experience. They were usually cased in brass cases just for the Contest, like this lot was originally. The company kept them for many years, and some were sent to KeObservatory Contests, while some turned up again later in Geneva. It was not until the 1980's that the company decided to sell some of the remaining stock of the pieces from 1947. This is one of them.