Many companies have spent much of a Covid-19-stricken 2020 worrying about mounting debts. Jeweller group Anthony Nicholas, meanwhile, appears to have timed a major deal just right. In December 2019, the Irish-owned company sold four of its Fraser Hart shops in the UK for £31.7 million to Watches of Switzerland, the UK’s largest seller of Rolex, Cartier, Omega, Tag Heuer and Breitling watches. The move was part of a major refocusing and investment programme announced by the board into its two main brands, Fraser Hart and Fields, as part of an effort to accelerate its development as an omnichannel business.…