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

A 9ct gold gentleman’s Bulova quartz wristwatch and two further gilt metal quartz wristwatches, the first with signed white dial and Roman numerals, to black leather strap; the second signed Montine International, with champagne coloured dial and applied gilt numerals, on black leather strap; the third signed Seiko, the cushion-shaped dial with date aperture at 3, Roman numerals and sweep seconds hand, stainless steel back, on black leather strap, first 32mm, second 32.5mm, third 29mm. £60-80