Why Watches of Switzerland has bought Italian luxury jewellery brand Roberto Coin
?Milestone? deal in luxury branded jewellery strategyRoberto Coin is sixth biggest jewellery brand in USEarnings and margin-enhancing acquisitionWatches of Switzerland (WOSG) has splashed out $130 million (£104 million) to buy Italian handcrafted jewellery business Roberto Coin Inc in a deal that skews the FTSE 250 firm?s sales mix a bit more towards the lucrative branded jewellery market.Shares