Rolex Daytona Yellow Gold 16518 MOP DialThe Last of the Zenith Daytonas The Zenith era Daytonas have seen a meteoric rise in recent years as collectors have turned their attention to this important watch in Rolexs history. It was their first self winding chrono and was the first chronograph to come in a 40mm case size and we love them! They have a lot of presence on the wrist and are robust enough for daily wear due to the sapphire glass. The ref 16518 came from the factory on a leather