It’s a challenging time for the luxury watch market, with sales dipping in the face of the coronavirus lockdown, new product releases delayed, and trade show Baselworld collapsing. But all this doesn’t necessarily impact the secondary market, and David Hurley, executive vice president for The Watches of Switzerland Group in the United States, says that investment-grade timepieces are still much sought-after: “During Covid, it seems people have doubled down on purchases that hold and grow...