Breguet Classique 5157

The Breguet Classique 5157, reference 5157BB/11/9V6, has a white gold case measuring 38 mm across. The extra-flat case stands 5.5 mm thick, with lugs set 20 mm apart. A self-winding movement, calibre 502.3, drives the watch and gives 45 hours of power reserve. The sapphire crystal caseback reveals the movement, which is visible thanks to the display back. The silver dial is hand-guilloché, engraved on a rose engine, and shows a central seconds display. Alligator leather forms the strap, closed with a white gold pin buckle. Rated to 30 metres, the case tolerates only light contact with water.