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BUGATTI TOURBILLON
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THE PARTNERSHIP
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DESIGN INSPIRATION
From a creative concept to design inspiration. To the first stroke of a pencil through hundreds of iterations. A timepiece like no other comes to life. The Bugatti Tourbillon shares the performance and appearance of Bugatti's latest hypercar.
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THE DEVELOPMENT PROCESS
557 components. V16 engine block automaton. 30-second flying tourbillon. Off-centered jumping retrograde hours and retrograde minutes. Double power reserve indicator. 48-hour power reserve.
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THE COMPLICATIONS AND FEATURES
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THE V16 ENGINE-BLOCK AUTOMATON
This one-of-a-kind automaton is made of a single, very large block of transparent sapphire, in which 16 cylinders are drilled. They house 16 titanium pistons. They're driven by an achievement of watch manufacturing : a single-axis crankshaft. It is one of the longest, most elaborate and most delicate watch parts ever crafted. When the automaton is activated, the crankshaft spins and all 16 cylinders move up and down. The engine block is connected to a set of 16 exhaust manifolds. After the pusher within the crown is activated, the automaton sequence lasts 20 seconds.
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THE 30-SECOND FLYING TOURBILLON
Gravity has a naturally negative impact on a movement's accuracy. By putting its escapement into a constant spin, the tourbillon counteracts this natural defect. The faster the rotation, the better the accuracy. In Caliber JCAM55, this rotation takes 30 seconds, twice as fast as the ubiquitous one-minute period. The tourbillon carriage being held only by its base, with no upper bridge, makes it a flying tourbillon.
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THE RETROGRADE, JUMPING HOURS, AND RETROGRADE MINUTES
Both the hour hand and the minute hand are retrograde. After they complete a 270-degree arc, when they finish their own cycle, they jump back to zero and start anew. What's more, the hour hand is jumping. Every 60 minutes, the blue hand jumps to the next hour and stays there until the next one is up.
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THE DOUBLE POWER RESERVE INDICATOR
A unique feature in contemporary watchmaking, the Bugatti Tourbillon displays the power reserve of its automaton. The engine block automaton can execute an incredible 20 consecutive animation sequences on a single, full wind. The remaining autonomy is indicated by the smaller hand in the Power Reserve counter. Caliber JCAM55's overall power reserve of 48 hours is indicated by the larger, red hand in the same subdial.
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THE CROWNS
The Bugatti Tourbillon follows one of Jacob & Co.'s design principles, which is not to use side crowns. It has two. The winding crown, which doubles as the automaton start pusher, is located at the 12 o'clock side of the case. The time-setting crown is located on the case back, underneath the dials. It's fitted with a Jacob & Co. signature lift-out bow for optimal comfort.
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THE LIFESTYLE
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THE SPECIFICATIONS
BUGATTI TOURBILLON
Black Titanium
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