Introducing: Breguet’s Year-End Showstopper Is The New ‘Experimentale 1’ With 10Hz Constant Force Natural Escapement Tourbillon

All visual updates aside (which I’ll get to shortly), the technical achievement of the new Caliber 7250 takes the front seat here. This is a double-barrel movement with 72 hours of power reserve across two barrels and four springs (blued, a first for Breguet), but that’s almost not notable, in some ways, against the backdrop of everything else. 

Instead, the star is the new magnetic escapement, made of two balance wheels in grade two titanium, with two magnetic tracks inserted. Those tracks feature in a ramp design of increasing and decreasing levels of magnetism. Instead of a traditional Swiss lever escapement, the new pallet lever uses samarium–cobalt magnets to replace the jewels (the same samarium-cobalt is attached to the escape wheels), enabling a frictionless, natural escapement, while the lever itself is nickel-phosphate.