An outstanding example of the iconic Zenith-powered Daytona reference 16520, coming from its second owner. The watch features an excellent, sharp and thick case, lightly polished by Bucherer in 2019 and seemingly unworn since. It retains its original white tritium dial with perfectly matching hands, both in superb condition. The original 78390 bracelet with 503B endlinks shows only very light stretch, with a U1 clasp code. The watch was fully serviced by Bucherer in 2019 and remains in excellent overall condition. A truly beautiful and complete example of this highly collectible reference.