Precious metals and their alloys and goods in precious metals or coated therewith (not included in other classes); jewellery and imitation jewellery; costume jewellery; semi-precious and precious stones; unwrought and semi-wrought precious stones and their imitations; ornamental pins; cuff links; ornaments of precious metal; key rings; jewellery cases or boxes of precious metals; horological and chronometric instruments and parts thereof; watches and clocks.;