Year: Circa 1974
Model/Reference No: 6263
Case: 37.00 mm, reference no. 6264, serial no. 280512, stainless steel Dial: black, signed Rolex Oyster Cosmograph
Movement: 727 Valjoux mechanical, 17 jewels, signed Montres Rolex S.A.
Bracelet: 2018 stainless steel Rolex Oyster bracelet with folding clasp, signed Rolex Steelinox
Provenance: From the Estate of an United States Air Force Colonel.
Catalogue essay: This Daytona Cosmograph, reference no. 6263, began production in the early 1970s. Reference 6263, was the first model to be fitted with screw-down pushers, allowing for water protection up to 100 meters. Reference no. 6263, is one of the last to include a manually wound Valjoux movement. In 1988, the watches were equipped with automatic movements. This early model features a unique black dial, lacking the 'Daytona' name, but signed 'Rolex Oyster Cosmograph', marking the early evolution of the watch.