Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect

A jadeite set lady’s watch, the cream rectangular dial with black Arabic numerals and baton hour makers signed ‘Cartier’, the jewelled movement signed ‘LeCoultre Co’, the case with winder to the reverse stamped ‘14k’ to the inside, the geometric shoulders set with square and rectangular cabochon jadeite, reverse of one shoulder numbered ‘2670’, to a later rectangular hoop-link bracelet strap, clasp stamped ‘14kt’, (jadeite untested for treatment or enhancements), wristwatch length 19cm. £400-600