Breguet Guilloché in 18K Yellow Gold Cushion-Shaped Dress Watch Cal. 839 “Classique”When it comes to figures who have significantly shaped the evolution of watchmaking, few have had as much influence as Breguet. From pioneering automatic winding mechanisms to the invention of the tourbillon itself, Breguet left an enduring legacy. His namesake brand remains one of the oldest still in existence, carrying a rich heritage that dates back to 1775. One of the hallmarks of Breguets craftsmanship is their signature engine turned and hand