Classique Tourbillon Sidéral 7255
7255PT/2N/9VU
Classique Tourbillon Sidéral 7255
7255BH/2Y/9VU
- Movement 187M1
- Diameter 38 mm
- Shape Round
- Material Platinum
- Number of components 183
- Winding Manual winding
- Movement 187M1
- Diameter 38 mm
- Shape Round
- Material 18K Breguet gold
- Number of components 183
- Winding Manual winding
Mastering time through the art of the tourbillon
In developing its first flying Tourbillon, Manufacture Breguet is following in the footsteps of the great watchmaker. The House continues to cultivate his spirit of constant innovation, returning to the foundations of the Tourbillon to offer a design that is distinctive in two respects: both flying and mysterious.
Timepiece Architecture
Movement 187M1
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Balance wheel
A vis
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Power reserve
50 hours
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Thickness
4.8 mm
-
Frequency
2.5 Hz
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Width
30 mm
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Number of components
183
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Winding
Manual winding
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Balance spring
Breguet Nivachron™
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Diameter
38 mm
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Width of lugs
20 mm
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Thickness
10.2 mm
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Water resistance
3 BAR
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Shape
Round
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Material
18K Breguet gold
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Type of crown
Non-screwed crown
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Caseback
Sapphire case back
Tourbillon
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
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.
Grand Feu enamelling
Grand Feu enamelling consists in applying enamel and firing it at very high temperatures until a stable, luminous surface is obtained. This expertise demands exceptional mastery, as each firing can either reveal the dial or permanently compromise it.
Hand engraving
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.
Guilloché
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.
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