This is a wonderful, Breguet Type XXI Flyback Chronograph. Reference number 3817ST/X2/3ZU. Diameter 42mm. Sapphire glass front and back.
Introduced at Basel Watch Fair in 2016, the Type XXI Flyback Chronograph introduced a vintage-style dial with light tan coloring accents. This model introduced a slate grey dial which gives a completely new look of the Type XXI, which usually had dark brown or black dials.
One of the best parts of this Breguet is the movement. Mounted with itss attractive gold rotor – is visible through a sapphire crystal exhibition caseback window on the rear of the watch.
Inside the watch is the very well-regarded in-house Breguet caliber 584Q/2. This is the newest version of the caliber 584Q, which now includes an “inverted in-line Swiss lever” silicon escapement