Calibre 6672 25 jewels black dial applied Arabic numerals with luminous accents luminous hands outer recessed tachymetre scale and 1/5th seconds divisions three subdials for 30 minutes register small seconds and 12 hours register window for date tonneau-shaped 18k gold case rotating bezel calibrated for 60 units screw down back two round chronograph buttons in the band 18k gold Breitling buckle case dial and movement signed