Rolex. Attractive, Datejust Turnograph, Automatic Wristwatch in Yellow Gold, With Red Write Silver Dial, Reference 6309 Model: Datejust Turnograph Reference: 6309 Case Material: Yellow Gold Bracelet Material: Leather Strap Year: 1955 Movement: Automatic Caliber: A296 Case N°: 85595 Dimensions: 36 mm Signed: Dial, Case and Movement The rotating bezel has always been a landmark feature in Rolex’s production line, as a constant aid to divers, pilots and other technical-related professionals. One of the most iconic and of immediate recognizability was the one with minute divisions and fine dividing lines advertised in one of the first Rolex catalogues in 1956 on a reference 6309 bearing the emblem of the US Air Force flying team “Thunderbirds”. Considering this association, this type of bezel is known as Thunderbird. The present watch, reference 6309, is a later reinterpretation of the original “Thunderbird”, featuring a rotating bezel and date wheel, replacing the original non-date reference 6202. The yellow-gold oyster case is gorgeous for its quality and even more so with the exceptional dial with applied gold spade shaped hour markers and the unusual red “Datejust” writing at 12 o’clock, one of the most difficult combinations that can be found for this model. Estimate € 6000 - 12000