In 2008, Breguet came out with a new way of minute repeaters, fitting them with an entirely re-engineered movement incorporating new materials and featuring innovative positions for the gongs, gong rests and hammers.
This patented technique is now in service on Breguet minute repeater no. 7637. Its large, 42 mm white or pink gold case houses a minute repeater movement featuring running seconds at 9 o’clock and a 24-hour (day/night) subdial at 3 o’clock. The crystal-clear sound issuing from the case had never been heard before in any repeater without chimes. The gold gongs match the color of the case while the hard-metal hammers have been polished and beveled – no mean feat for such unyielding material. The hand-wound movement visible through the clear sapphire case back has been entirely chased by hand while, in true Breguet style, the dial is manually engine-turned silvered gold.
Case: round in 18K white gold with finely fluted caseband. Rounded horns welded to the case, screw pins securing the strap. Diameter 42 mm. Sapphire-crystal caseback.
Dial: in silvered 18K gold, hand-engraved on a rose engine. Individually numbered and signed BREGUET. Chapter ring with Roman numerals. Open-tipped BREGUET hands in blued steel. 24-hour indication at 3 o’clock and running seconds at 9 o’clock.
Movement: hand-wound, with minute repeater, entirely engraved by hand. Numbered and signed BREGUET. 12 ½ lines. 31 jewels. Cal. 567/2. 40-hour power-reserve. Straight-line lever escapement. 2.5Hz balance-wheel with load screws. BREGUET overcoil. Adjusted in 5 positions.
Also available in 18K rose gold.
Haute Joaillerie Model
Classique Grande Complication 7839 ~ Haute Joaillerie Minute repeater
Another achievement of Breguet’s acoustic laboratory, the Classique Grande Complication 7639, “senior” companion piece to the 7637 design, adds the prestige of baguette diamonds to the minute repeater function. Ideal for conveying sound vibrations beyond the case, diamond’s hardness and pureness further improve the watch’s sonority by reducing vibration loss to a minimum.
Following the lead of major sound-system specialists whose loudspeakers now feature diamond conduction, Breguet has decided to introduce a fully diamond-set design whose setting is as perfect as the acoustic performance of its minute repeater. Watch 7639 emits a spectacularly pure sound that is certain to delight any connoisseur of ringing or chiming Grande Horlogerie. Including its bracelet attachments, crown and dial, the case is entirely covered in invisibly set diamonds that turn the watch into a fabulous gem.