Watches of Switzerland rise on strong H1 performance
** Shares of Watches of Switzerland WOSG.L rise 6.2% to 414p ** WOSG among top gainers in FTSE 250 mid-cap .FTMC index ** H1 revenue up 10% at constant currency at 845 mln pounds ($1.13 billion), driven by robust demand for luxury watches and strong performance in US ** Co reiterates full-year guidance ** WOSG has fallen about 26% YTD ($1 = 0.7451 pounds) (Reporting by Unnamalai L in Bengaluru) ((Unnamalai.L@thomsonreuters.com;))