Breguet DOUBLE TOURBILLON TOURNANT GRANDE COMPLICATION TWIN ROTATING for sale in New York, New York

$437

BREGUET DOUBLE TOURBILLON TOURNANT - CLASSIQUE GRANDE COMPLICATION
~~ Platinum with Independent Twin Rotating Tourbillons
From the Grande Complications collection, Breguet has introduced a truly amazing timepiece with great attention to each & every detail.:
The mechanics:
* Double Tourbillon: Each Tourbillon is an independent mechanism which rotates on it own axial every 60 seconds. The 2 Tourbillons are connected by a series of differential gears. The differential then transmits the combined mean (average) time of the two Tourbillons - allowing for an even more accurate/precise method of time-telling.
* The double Tourbillons are mounted on a plate - which couples as the dial. The plate itself rotates once every 12 hours allowing for simultaneous rewinding of the twin-barrels.
* The current hour is displayed by a hand mounted on the bridge which connects the two Tourbillons which makes 1 revolution every 12 hours.
* Breguet Caliber 588, contains 69 jewels & has an approximate Power Reserve of 50 hours.
The Finish:
* Polished solid Platinum case with Breguet's signature coined edge.
* Silvered Guilloche textured Tourbillon plate center of dial.
* Hour & Minute chapter ring flange is made of 18kt Gold with a silvered finish. Black painter Roman Numeral hour markers & got minute markers.
* Blued "Breguet" Style Hands.
* The back of the movement - visible through the sapphire crystal case back - bears a spectacular hand-engraved diagram of the solar system, inspired by the 60 second rotation of the 2 Tourbillon cages and the 12 hour rotation of the center dial bearing the Tourbillons.
Working independently one from the other, the two tourbillons are coupled by means of differential gears and mounted on a rotating center plate effecting a complete revolution in twelve hours. The differentials transmit the mean rate of the two tourbillon regulators and the display of the time to the rotating center plate, allowing the simultaneous and tensionally equal rewinding of the twin barrels. The movements rate is therefore the mean rate of the two tourbillons, making its running rate twice as precise as a normal movements. The oscillators isochronism errors in the vertical positions are cancelled. The current hour is shown via the bridge connecting the two tourbillons, which doubles as an hour hand, while the minutes are indicated by a standard minute hand at center.
The back of the movement holds further refinements; not least the view through the clear sapphire caseback of an engraved diagram of the solar system arrayed around the movements scintillating gears. Three patent applications have been filed to protect this timepieces unique features: original winding system, more than one regulating system and differential gearing. Its successful development stands as a salute to precision at its most exceptional. Its winding and time-setting mechanism is a two-part construction to allow proper centering of the crown on the case flank.
Reference No. 5347PT/11/9ZU
RETAILS FOR $437,000
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Unworn - complete with box and papers!!
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