Rolex Oyster Perpetual, Superlative Chronometer, Officially Certified Cosmograph "Daytona", Ref. 16523. Production of this reference started in the 1990's.Very fine self-winding, water-resistant down to 100 meters, stainless steel and 18K yellow gold
SwissWatchExpo Ultimate Guide to the Rolex Cosmograph Daytona
The 16523 Oyster Perpetual Cosmograph Daytona | Watchonista
Sold at Auction: Rolex "Oyster Perpetual Superlative Chronometer officially certified Cosmograph Daytona", Case No. M547872, Ref. 116520, 41 mm, circa 2005
Sold at Auction: ROLEX, Oyster Perpetual, Superlative Chronometer, Officially Certified, Cosmograph Daytona, ref. 16528 nº W122780. for gentlemen with case and strap in 18K yellow gold.