Rolex Daytona 16520

Daytona Steel Model #16520 Box:Yes Paper:No Year:1999

The Rolex Cosmograph Daytona Ref. 16520 represents the legendary "Zenith Daytona" era through its robust 40mm Oystersteel construction, powered by the modified Zenith El Primero-based Calibre 4030 automatic chronograph movement delivering approximately 50 hours power reserve. Operating at 28,800 vibrations per hour with 31 jewels, this COSC-certified chronometer features vertical clutch architecture and Rolex-modified components including reduced frequency from El Primero's 36,000 vph for enhanced reliability. The movement represents an important transitional period before Rolex's fully in-house Calibre 4130. The classic black dial with white contrasting subdials creates optimal chronograph legibility, while the three registers at 3, 6, and 9 o'clock maintain perfect symmetry. The fixed stainless steel bezel with engraved tachymeter scale allows calculation of average speeds up to 400 units per hour, honoring the Daytona's racing heritage. Water resistance to 100 meters and the robust Oyster case construction ensure versatile everyday capability. The three-piece Oyster bracelet with solid end links and flip-lock extension clasp provides secure attachment. This preowned Cosmograph Daytona 16520 represents the final evolution of the "Zenith Daytona" before the introduction of in-house Calibre 4130. Complete documentation with original papers and box ensures investment-grade provenance. The 16520's status as the transitional Daytona reference makes it increasingly collectible among enthusiasts. Buy this preowned Daytona Steel on Master Luxury with papers and original box. Box : Yes Paper : No Year : 1999 Brand : Rolex Model : 16520 Collection : Cosmograph Daytona Gender : Mens Date : No Sku : 95187 Brand : Rolex Model : 16520 Collection : Cosmograph Daytona Gender : Mens Date : No Sku : 95187