Cartier: a rare 1950s gold chronograph wristwatch in circular case with extended lugs, the matt silvered dial with alternating raised gilt dagger and Arabic numerals, outer telemetric and tachymetric scales, subsidiary dials for running seconds, elasped minutes and hours, sweep centre seconds operated by two rectangular batons in the band, the snap on back hand stamped 90458 with the case makers stamp E.J., the movement signed Jaeger, jewelled to the centre and numbered 287