Breguet Classique Répétition Minutes 7637

Breguet's Classique Répétition Minutes 7637, reference 7637BB/2Y/9ZU, has a white gold case measuring 42 mm across. The case stands 12.3 mm thick, with lugs set at 22 mm apart. A sapphire crystal covers the blue Grand Feu enamel dial, and the sapphire caseback allows a view of the movement inside. The manual-winding calibre 567.2 drives the watch, offering 40 hours of power reserve and central seconds display. Its principal complication is the minute repeater, which strikes the hours, quarters and minutes on demand through a mechanism activated by a discreet lever on the case. An alligator leather strap closes with a white gold folding clasp. Breguet does not rate this piece for water resistance.