An 18ct white gold sapphire and diamond-set quartz wristwatch, by The Royal Diamond for Chatila

An 18ct white gold sapphire and diamond-set quartz wristwatch, by The Royal Diamond for Chatila The rectangular dial set with calibré sapphires in concealed mounts to a sapphire-set crown and later straps with maker's buckle, <i>European Convention mark, case 26mm wide</i> Glass and case signed The Royal Diamond, case no. 77 and BA 71, buckle with maker's mark