An 18ct pink gold dual time 'Instrumento Tondo' automatic wristwatch, by De Grisogono

An 18ct pink gold dual time 'Instrumento Tondo' automatic wristwatch, by De Grisogono The oval black dial with luminous Arabic numerals, two subsidiary dials for dual time function and power reserve indicator to a black diamond-set crown and later straps, accompanied by maker's double deployant buckle, <i>European Convention mark, case 38mm wide, black diamonds not tested for natural colour origin</i> Dial, case and buckle signed De Grisogono, case no. 007986, movement no. 2892A2