Debuted in 2000, reference 116520 is Rolex first Cosmograph Daytona with an in-house movement cal. 4130. Previously, the brand relied on a Zenith movement that they modified and upgraded. An interesting fact – the 116520 produced between 2000 and 2002 were subjected to a rare color change dial. Over time, the dial of the watch would turn from white to an off-white, creamy color, producing an exceptional phenomenon. An example made circa 2000 is now offered as Lot 8017 in the in the #HongKong “Fine Watches” online sale, estimated at HK$200k – 230k/ US$26k – 30k. Bidding open through 4 Mar, visit link in bio to browse the full catalogue. #SothebysWatches #SothebysHongKong #Rolex #CosmographDaytona #RolexDaytona #rolexwatches #rolexcollector #rolexwrist