Νομίζω πως πρέπει να ανοίξουμε ένα γενικό θέμα σε αυτή την κατηγορία για την εταιρεία και ξεκινώ με την ανακοίνωση του πρώτου tourbillon σε ατσάλι
To celebrate the 100th anniversary of its historical Geneva boutique, Vacheron Constantin presents a tourbillon in a steel watch case for the very first time, issued in a limited series of just 10 and available exclusively in Geneva. It is part of the Malte collection.
The conception and construction of a tourbillon movement are always a daunting technical challenge. Invented in 1795 for pocket-watches, the tourbillon provides a clever solution to the detrimental effects of gravity on any mechanism, but one that was extremely difficult to implement. This device consists of a mobile carriage housing the movementΆs regulating organs – meaning the balance, its spring and the escapement. By constantly revolving, the tourbillon subjects the regulating organs to a regular 360° rotation, thereby cancelling out the deleterious long-term effects of gravity on the regulating system, and thus on the accuracy of the movement.
The movement has been treated to an exceptional finishing that is impossible to perform mechanically on the thin bars or bridges known as “barrettes”. Known as rounding off, it consists in filing the ends of the arms in order to give then a semi-cylindrical cone shape, while meticulously preserving the central part and the heels and thereby ensuring perfect regularity. To finalise this operation, Vacheron Constantin craftsmen rub it down and polish it using stones, buffs, wooden pegs and finishing paste in order to achieve a perfectly polished rounding off. No less than eleven hours of work are required for this work on the bars in order to comply with the finishing criteria established by the Manufacture.
The Vacheron Malte Ref. 30145 features the hand-would caliber 1790 (a movement entirely developed and manufactured in-house by Vacheron Constantin) with 27 jewels, beating at 18,000 bph and with a power reserve of 40 hours.
The stainless steel case is water resistant to 30 meters and the dial is opaline black nickel, with a sunray-brushed center and vertical hand-guilloché outer zones. The crystal is sapphire as is the display back. The strap is Mississipi alligator with a steel folding clasp.
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