UK retailed in June 2000, this is the highly collectible stainless steel white dial Cosmograph Daytona ref. 16520. Now out of production, prices for 'Zenith Daytonas' like this example are rising rapidly. Featuring an automatic movement based on the highly respected Zenith caliber 400, to which Rolex performed about 200 modifications to bring it up to their rigorously high standards, including replacing the balance with its Microstella system and removing the date function. Our watch is in excellent order, and complete with the original box, and perforated Rolex certificate. Guaranteed by Watch Club for 2 years.