Breguet Classique Tourbillon Extra- Thin Automatic 5377

A thinner model of the 5377 Classique Tourbillon

This 42mm watch has all the identifying attributes of a Breguet product, including its engine-turned dial and open-tipped Breguet hands, welded lugs, fine fluting on the caseband, unique number and secret signature. This complicated watch is distinguished by its off-centre tourbillon, which is protected by several patents. The tourbillon carriage and balance are in titanium, the balance-spring is made of silicon and the escapement is in silicon and anti-magnetic steel.

The new calibre 581DR fitted into this timepiece beats at 4Hz—a high frequency for a tourbillon—without sacrificing power reserve. The patented ‘high-energy’ barrel provides 90 hours of running time. To keep the height of the movement down to 3mm in a 7mm thick case, Breguet’s watchmakers have placed the bi-directional platinum winding rotor on the edge of the movement. This new movement, protected by two patents, has been made into a work of art; the fine engraving and superb workmanship can be admired through the sapphire-crystal caseback.

So far as its looks are concerned, the dial juxtaposes its symmetry of lines with its non-symmetrical features. Four engine-turned patterns demonstrate fine workmanship with a hobnail pattern for the hours and minutes chapter, a barleycorn surround, a straight chevron pattern for the power-reserve indicator at 8 o’clock and cross-hatching to outline each feature. A blue sapphire crowns the centre of the tourbillon bridge to draw the eye down from the hands. The case, in 18-carat rose gold with a finely fluted caseband, is water resistant to 30 metres.

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