Cal. 10-60 nickel-finished lever movement 48 jewels the black matte dial with luminous Arabic numerals luminous hands three subsidiary dials indicating constant seconds 30 minutes and 12 hours registers in circular water-resistant-type case with bezel calibrated for tachymetre scale the band with engraved inscription PLATIN-EDITION downturned lugs the glazed back secured by six screws cabochon sapphire-set crown two round chronograph buttons in the band platinum Glashütte Original buckle case dial and movement signed