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Breguet 7800BA/11/9YV

Based on the new Breguet self-winding movement incorporating a silicon escapement and a Breguet balance-spring, the Réveil Musical houses a fabulous patented musical mechanism.
A disc carrying the pins replaces the traditional music-box cylinder and alternately acts on the 15 metal teeth of the comb. A metallic glass membrane engine-turned by hand enriches this exceptional mechanism and serves to amplify the frequencies required to emit the tune.
The dial, which is connected to the pin-bearing disc, performs a complete turn during the 20 to 25 seconds while the tune is being played.
Case round in 18-carat yellow gold, caseband finely engraved with a musical stave.
Rotating dial, hand-engraved on a rose engine and platinum coated. Individually numbered and signed Breguet.

Mechanical self-winding movement, numbered and bearing the Breguet signature
Also available in 18-carat white gold. 

Material : Yellow gold / White gold
Calibre : 777M
Lines : 171/3
Case thickness (mm) : 16.30
Case dimension (mm) H : 48.00
Jewels : 55
Water (m) : 30
Powers (hours) : 55
Frequency (Hz) : 4.0
Balance-wheel : Breguet
Escapement : Swiss straight line lever
Balance-spring : Breguet