Classique Phase de Lune 7137
7137BR/15/9VU
Classique Phase de Lune 7137
7137BB/Y5/9VU
Classique Phase de Lune 7137
7137BB/11/9V6
- Movement 502.3 DR1
- Diameter 39 mm
- Shape Round
- Material 18K rose gold
- Number of components 256
- Winding Automatic
- Movement 502.3 DR1
- Diameter 39 mm
- Shape Round
- Material 18K white gold
- Number of components 256
- Winding Automatic
- Movement 502.3 DR1
- Diameter 39 mm
- Shape Round
- Material 18K white gold
- Number of components 256
- Winding Automatic
This model, which displays a power reserve and moon phases, is a showcase for guilloché.
Variations in the guilloché motifs distinguish different areas of the dial, with three distinct patterns applied across the different indications. The time is indicated by the open-tipped Breguet hands and Roman numerals. On the technical side, the Classique 7137 features an extra-flat mechanical movement whose gold oscillating weight is hand-engraved on a rose engine.
Timepiece Architecture
Movement 502.3 DR1
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Balance wheel
Breguet
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Power reserve
46 hours
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Thickness
3.6 mm
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Frequency
3 Hz
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Width
32.4 mm
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Number of components
256
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Winding
Automatic
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Balance spring
Flat silicon balance spring
Power reserve indicator
The power reserve indicator displays the remaining autonomy of the movement before it needs to be wound. It makes it possible to monitor the energy available in the barrel, while adding a direct mechanical reading to the dial.
Moon phase
The moon phase reproduces the progression of the lunar cycle on the dial. A complication that is both astronomical and decorative, it combines the reading of time with a poetic representation of the sky.
Calendar
The calendar displays the date on the dial, generally by aperture, hand or disc. Simple in appearance, this indication requires precise integration both into the movement and into the balance of the dial.
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.
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.
Perlage
Perlage consists in applying small regular overlapping circles to the movement components. This decorative finish creates a luminous texture and highlights the care devoted to surfaces that are usually only scarcely visible.
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