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

A lady’s 9ct gold wristwatch, by Omega, the textured square cushion-shaped gilt dial signed and with applied baton hour markers, signed jewelled movement, case signed and bearing Swiss marks, with polished bezel, to cabochon tiger’s eye quartz set crown and integral tapered woven-link bracelet strap, clasp signed and stamped ‘375’, wristwatch length 17cm. £300-400