Classique Grande Complication 7637 ~ Minute repeater
Today still, the minute repeater ranks supreme among horological complications. Universally admired, its intricate construction has remained the preserve of a few master watchmakers with the skill and patience to fit and adjust its delicate parts. In 2008, Breguet came out with a new way of designing these technological marvels, 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.

• Specifications of the watch
  REF. 7637BB/12/9ZU

• 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.