Breguet Type XXI

About this reference

The Breguet Type XXI 3810ST was introduced in 2004 as a modern evolution of the mid-century Type XX military aviator watches. While the 3810ST is no longer in the current catalog, having been superseded by the 3817 and the 2023 Type 20/XX generations, it remained a production staple for nearly two decades. Collectors value this reference for its 42mm stainless steel case featuring signature fluted sides and the Calibre 584Q movement. This self-winding movement includes a flyback complication and a centralized minute counter for the chronograph, distinguishing it from standard sub-dial layouts. The dial is characterized by a multi-layered construction with a recessed center and a day/night indicator at the three o'clock position. On the secondary market, the 3810ST typically trades between $5,500 and $8,500 depending on condition and accessories. A notable variant is the 3810BR, which utilizes the same dimensions and movement but is executed in 18k rose gold.