Reine de Naples Sonnerie 8978
8978BB/58/974 D00D 3L
- Movement 78SO
- Shape Ovoid
- Material 18K white gold
- Number of components 331
- Winding Automatic
Ringing out on the hour with two strikes repeated three times, the sonnerie au passage is the Grande Complication that this watch houses.
For greater discretion, a pusher at 2 o’clock deactivates this function. The movement in its oval shape has been entirely created by the Breguet Manufacture. It has been engraved and decorated by hand. Aesthetically, a white mother-of-pearl dial decorates the white gold case, whose bezel is entirely set with diamonds. The hammers for the striking mechanism, with a diamond between them to indicate the engagement of the sonnerie au passage, are visible above the dial at 11 and 1 o’clock. A bird appears on the back, represented by the decoration of the caseback, the movement and the oscillating weight.
Timepiece Architecture
Movement 78SO
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Balance wheel
Breguet
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Power reserve
70 hours
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Thickness
6.7 mm
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Frequency
3 Hz
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Width
22.7 mm
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Number of components
331
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Winding
Automatic
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Balance spring
Flat silicon balance spring
Passing strike
The passing strike automatically marks the hour or the quarters, without any action from the wearer. This complication makes time audible at regular intervals, thanks to a striking mechanism 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.
Snailing
Snailing is a decorative finish forming circular or spiral motifs on certain metal surfaces. It creates subtle plays of light and highlights the care given to the movement components.
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.
Polishing
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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