Rolex Daytona 116520 Black Stainless Steel CosmographBrand: RolexSeries: DaytonaGender: MaleCase Material: Stainless SteelCase Diameter: 40 mmDial: Analog Black LuminousBezel: Stainless SteelMovement: AutomaticClasp: Folding Oysterlock SafetyBracelet: Stainless SteelWater Resistant: 100 Meters (330 Feet)Notes: There have been three series of the Cosmograph Daytona. The original series, produced in small quantities from circa 1963 to the later 1980s, had a four-digit model or reference number, and had a manual wind movement. The wind movement is essential to the other two movements because it allowed for increase winds coming in on both sides[clarification needed]. The Rolex Daytona was inspired by racecar drivers and enthusiasts, most notably, iconic actor Paul Newman, who reportedly wore his Daytona every day from 1972 until his death in 2008.[1] This original series was in very short supply by the early 1990s, which led to a second series to meet demand, introduced in 1988 and using a Zenith El Primero modified automatic winding movement, with a five-digit model number. The movement was originally manufactured and released in 1969 and remains the highest VPH (vibrations per hour) mass-produced movement on the market at 36,000 VPH.[citation needed] Rolex purchased these movements for the Daytona, and then modified the movement from 36,000VPH to 28,800VPH and made a few other subtle changes. These later series Daytonas, pre-dating in-house movements, were accurate and reliable; they were produced in limited quantities from 1988 to 2000.

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