Calibre 563 25 jewels silvered dial with etched lines resembling the longitude and latitude lines of the globe sweep centre seconds date in aperture outer city ring revolving by the diamond-set crown three-part case in 18k white gold bezel and band set fully with calibré-cut diamond and emerald diamond-set lugs screwed case back emerald-set crown 18k white gold Breguet deployant clasp case dial and movement signed