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

An openfaced pocket watch, by Ulysse Nardin, the cream dial with black Arabic numerals and subsidiary seconds dial, signed ‘Ulysse Nardin, Locle & Geneve’, the movement similarly signed, in plain chrome plated slim case, dial diameter 38mm. £100-150