While the automotive brand presents the Bugatti Chiron, a technical marvel and “super car” of unrivaled power, Parmigiani Fleurier unveils the watch associated with the car: the PF-Bugatti 390 Concept Watch.

She is the representative of a new generation of Bugatti timekeepers. 

The PF-Bugatti 390 is conceived as a motor-bloc on the wrist which movement takes a tubular, perfectly concentric shape. This coaxial structure splits the functional sections of a movement into separate compartments, which are in mutual interaction just like the motor of a car.

This spectacular piece falls in with the proud tradition of the PF-Bugatti family, which transgresses watchmaking conventions and presents exceptional mechanisms.

PF-BUGATTI TYPE 390 CONCEPT WATCH

Modular construction: a tubular engine, which can be removed from its receptacle
Coaxial construction: true precision of assembly

• BASE OF TIME: cylinder – frequency machine = car engine
• DISPLAY: displays the time like an additional module = cockpit

Sections of the tubular movement and dial display: 

(4)REGULATION (TB) – (3)TRANSMISSION – (2)ENERGY – (1)SUPPLY – WINDING (5)DIAL

• SUPPLY

This section determines:

• Power reserve indication
• Winding of the barrels
• Time setting

Key elements:

CLAMP ROD: A unique piece that replaces four components (trigger piece, humper, lever, lever spring) and ensures the transition between the winding of the barrels and the time setting. 

TORQUE LIMITING SYSTEM: Anti-breakage system, which has a free return function.

• ENERGY SUPPLY

• Two barrels ensure constancy in the supply

(Analogy with the two fuel tanks of a Bugatti car)

• Series-coupled barrels with a “triangular coupling” innovation:

• Barrel 1 is directly combined with barrel 2 
• Consequently, the energy supply is even more constant 

• TRAIN WHEEL 

Function: Energy transmission from the barrel to the escapement 

• Axial configuration instead of flat 
• The classical reduction ratio (alternation of Wheel-Pinion-Wheel-Pinion) is no longer used 

The transmission is ensured by a planetary gear, which consists of a central wheel, three satellites and a fixed toothed crown

There are three series of planetary gears that enable together:

• The reduction ratio function
• Transmission of the torque
• The centring of the force at each level

• TOURBILLON

• Flying tourbillon 60 seconds which diameter defines that of the whole concentric tube. 
• 4 Hz – very rare for a tourbillon ; great inertia of the balance wheel 
• Excellent power to weight ratio: very light yet resistant materials. Enables optimal adjustments and compatibility with the COSC standards.

• DIAL

The link with the dial occurs at the level of the central planetary gears (Transmission section)

Recovery of the torque and transposition by means of a worm screw (an exceptional element for a wristwatch), which enables:

• Angle function : the energy switches to a new plane and exits the closed tubular circuit, thus allowing a dial-display
• Anti-return system: irreversible mechanism, maintaining the hands’ original position 
• Robust and reliable mechanism