Classique La Musicale 7800
7800BR/AA/9YV 02
Classique La Musicale 7800
7800BA/11/9YV
Classique La Musicale 7800
7800BB/11/9YV
- Movement 0900
- Diameter 48.1 mm
- Shape Round
- Material 18K rose gold
- Number of components 633
- Winding Automatic
- Movement 0900
- Diameter 48.1 mm
- Shape Round
- Material 18K yellow gold
- Number of components 633
- Winding Automatic
- Movement 0900
- Diameter 48.1 mm
- Shape Round
- Material 18K white gold
- Number of components 633
- Winding Automatic
Like a musical box, this model houses a mechanism that can play a classical music melody.
This achievement was made possible thanks to a mechanism whose traditional cylinder has been replaced by a disc and acts successively on the 15 blades of the keyboard. A second innovation makes it possible to amplify the frequencies required for the production of the melody, without sacrificing impermeability. This innovation is a membrane in metallic glass that has been hand-engraved on a rose engine and placed under the movement. On the dial of this piece are the hours, minutes and seconds in the centre, whereas the power reserve indicator and the melody starter are visible at 3 o’clock and 9:30, respectively. A musical detail can be admired on the seconds hand, which ends in a treble clef motif. The dial is hand-engraved on a rose engine with a diamond motif, and when the melody starts, the dial, which is connected to the pin-bearing disc, makes a complete rotation on itself.
Timepiece Architecture
Movement 0900
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Balance wheel
Breguet
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Power reserve
55 hours
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Thickness
8.7 mm
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Frequency
4 Hz
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Width
39 mm
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Number of components
633
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Winding
Automatic
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Balance spring
Flat silicon balance spring
Seconds display
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.
Alarm
The alarm makes it possible to program an acoustic indication at a defined time. This complication combines time reading with a mechanical alert function, thanks to a striking system integrated into the movement.
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.
Straight stripes
Straight stripes are a decorative finish formed of regular parallel bands on the movement components. They structure the surface, soften reflections and highlight the geometry of the bridges.
Stretching / dressing
Stretching and dressing prepare or finish metal surfaces through the regular working of the material. These operations create clean, flat and even surfaces, essential both to visual quality and to assembly precision.
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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