As traditional as it is innovative, Breguet’s Tradition is a visionary model that has now entered the very exclusive circle of iconic Fine Watchmaking creations. The new version of this timepiece, which has a 40 mm-diameter case middle in 18-carat red gold case features the 507DR calibre with a matt grey NAC finish. This type of surface treatment deposits a charcoal-grey alloy of precious metals from the platinum family by electro-plating .