As a top luxury watch brand,Vacheron Constantin always creats the beautiful luxury watches,and this watch fully shows the spirit of brand.This Traditionnelle Tourbillon 14 Days is a beauty and elegant movement.

The tourbillon was invented more than two centuries ago to improve rate results by equalizing the influence of gravity on the balance. The escapement and balance wheel rotate within a cage – in most tourbillons, including this one, at a rate of once per minute – to ensure that the force of gravity is distributed evenly onto the balance and escapement.

The mechanism was invented for use in pocketwatches, and does indeed improve precision when a watch is in a vertical position, as most pocketwatches are when being worn.The extremely high power reserve, made possible by four paired barrels presents a special challenge, since it’s virtually impossible to provide constant power over such a long period.

As we expected, the vertical positions were close together. A bit too much power is supplied to the balance in the horizontal positions, as shown by the high amplitudes. For 12 hours after winding, the most important interval for a manual-wind watch, the rate results were generally good. The greatest deviation between all the positions was five seconds per day and the average deviation was +2 seconds. Even after seven days, the Patrimony was still running accurately, with no more than a one-second difference between any of the vertical positions.

Only after 13 days did the power begin to decline and the difference between the positions begin to increase. The average gain was still only around two seconds per day, but it became apparent that the tourbillon mechanism requires a substantial amount of power. Throughout the 14 days, the difference in amplitude between the horizontal and vertical positions, about 60 degrees, was roughly twice that of a conventional watch. The Vacheron Constantin nonetheless achieved good rate results for most of the running period.

The old criteria addressed the quality of the movement’s finishing and materials and nothing more. Now the entire watch is included in the inspection. Rate results, the function of the operating elements, water resistance and whether the watch runs for its stated power reserve are all part of the examination.

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