Rolex Oyster Perpetual Cosmograph Daytona steel/gold
Housing and aesthetics
The Reference 126503 in the striking combination of Oystersteel stainless steel and 18k yellow gold represents the latest evolutionary stage of the legendary racing chronograph. A special feature of this version is the white dial, which is accentuated by sprayed totalizers a fine, matt texture. The contrasting rings of the sub-dials in 18k yellow gold lend the dial exceptional depth and ensure excellent legibility. The precise Rehaut with the laser-engraved serial number and the Chromalight-covered indices complete the look. The 40 mm case impresses with the refined design typical of the new generation. Chamfers on the flanks, while the fixed gold bezel with tachymeter scale emphasizes the functional character. As the watch is in the condition NOS (New Old Stock) all surfaces are in pristine factory condition.
Caliber and mechanics
Inside the housing, the state-of-the-art Caliber 4131, which was introduced in 2023 as the successor to the tried-and-tested 4130. This manufacture movement features the patented Chronergy escapement and an optimized Finissage with Geneva stripes Rolex. With a Power reserve of approx. 72 hours and a stable Amplitude Rolex is setting new standards in chronometric precision. The vertical clutch of the chronograph mechanism allows the second hand to start up completely smoothly. The screw-down Triplock winding crown and pushers guarantee the robustness characteristic of the Oyster case and a water resistance that goes far beyond everyday requirements.
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For more information, see Technical Details.




















