The new movement Breitling has https://www.rolexrelogios.to/produkt-kategori/sea-dweller/ drawn on to power https://www.rolexure.to/vare-kategori/gmt-master-ii/ the Navitimer Ref. 806 1959 Re-Edition is the caliber B09, a hand wound COSC-rated chronograph. Since this is a re-edition of a watch that predates the advent of the automatic chronograph, a hand-wound in-house movement like this one seems like a logical https://www.rolexrelogios.to/ choice, and indeed this is a caliber that Breitling has made specifically to power the historically influenced re-edition.