In Depth: Breguet No. 160 Montre d’Or Beyond Marie Antoinette.Abraham-Louis Breguet’s No. 160 exists first as legend. The standard account describes a secret commission for Marie Antoinette, incomplete when she faced execution, requiring forty-four years to finish. Theft, recovery, mystery, and royal romance: the narrative contains all the necessary elements of mythology. Yet this fame is recent. ...