ABU DHABI, UAE, GENEVA and SINGAPORE, May 7, 2026 /PRNewswire/ -- The world's watch collecting community is poised for a special sale this week, as once-in-a-lifetime timepieces go up for auction with FutureGrail. The renowned auction house is anticipating a bidding frenzy for extremely rare vintage timepieces. The sale features 'one-of-one' Patek...