Classique Tourbillon Extra-Plat 5377
5377PT/12/9WU
Classique Tourbillon Extra-Plat 5377
5377BR/12/9WU
- Movement 581 DR
- Diameter 41 mm
- Shape Round
- Material Platinum
- Number of components 369
- Winding Automatic
- Movement 581 DR
- Diameter 41 mm
- Shape Round
- Material 18K rose gold
- Number of components 369
- Winding Automatic
This model integrates the slimmest Breguet automatic Tourbillon movement. On its exquisite guilloché dial, we discover the Maison’s traditional hands
The off-centred tourbillon has a light titanium cage that carrys a Breguet silicon balance spring. Moreover, the escapement has been created especially for this piece. These technical characteristics enable the balance spring to reach a frequency of 4 Hz, a high frequency for a Tourbillon balance spring. However, the power reserve has not been sacrificed, thanks to the patented high-energy barrel. The model 5377 has a power reserve of 80 hours. To be able to fit a 3 mm movement in a 7.1 mm case, Breguet developed a platinum oscillating weight located on the periphery of the calibre.
Timepiece Architecture
Movement 581 DR
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Balance wheel
Breguet
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Power reserve
80 hours
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Thickness
3 mm
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Frequency
4 Hz
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Width
37 mm
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Number of components
369
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Winding
Automatic
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Balance spring
Flat silicon balance spring
The seconds display makes it possible to follow the passage of time with precision. Depending on the construction of the movement, it may take the form of a central seconds hand or an off-centred small seconds display, integrated into the architecture of the dial.
Invented by Abraham-Louis Breguet in 1801, the tourbillon is designed to compensate for the effects of gravity on the regulating organ. By placing the escapement and the balance wheel in a mobile cage, it remains one of the House’s most emblematic complications.
Bevelling consists in chamfering and then polishing the edges of the movement components. This finish highlights the contours of the parts, catches the light and reveals the precision of the work devoted to the smallest details.
Hand engraving consists in incising the material using traditional tools to create decorations, inscriptions or motifs. Each gesture calls upon the artisan’s expertise and gives the piece a unique character.
Engine-turning engraves regular patterns into the material using a hand-operated lathe. At Breguet, this expertise structures the dial, catches the light and reinforces the legibility of the indications.
Mirror polishing consists in working the surface until a perfectly smooth and brilliant reflection is obtained. This finish requires great regularity in order to reveal the material without distorting the angles or volumes of the component.
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