Men’s Rolex Cosmograph Daytona 126503 Diamond Black Dial Yellow Rolesor Automatic Watch

The Rolex Cosmograph Daytona (Reference 126503) represents the perfect fusion of performance and prestige. Crafted in a 40 mm Oyster case made of Yellow Rolesor—a refined combination of Oystersteel and 18 ct yellow gold—this timepiece features a bright black dial set with diamonds in 18 kt gold settings, complemented by golden chronograph counters. The fixed yellow gold bezel with engraved tachymetric scale highlights its racing heritage. Powered by the in-house Calibre 4131 self-winding chronograph movement, it offers exceptional precision of −2/+2 seconds per day and a 72-hour power reserve. Finished with the iconic Oyster bracelet and Oysterlock safety clasp, this model delivers unmatched luxury and technical excellence.

Specifications:
Gender: Men’s
Movement Type: Perpetual, mechanical chronograph, self-winding
Calibre: 4131, Manufacture Rolex
Precision: −2/+2 seconds per day (after casing)
Functions: Centre hour and minute hands, small seconds at 6 o’clock; chronograph with centre seconds hand, 30-minute counter at 3 o’clock, 12-hour counter at 9 o’clock; stop-seconds for precise time setting
Power Reserve: Approximately 72 hours
Oscillator: Paramagnetic blue Parachrom hairspring; high-performance Paraflex shock absorbers
Winding: Bidirectional self-winding via Perpetual rotor
Dial Color: Bright black with golden counters, diamond-set
Gem Setting: Diamonds in 18 kt gold settings
Display Details: Chromalight display with long-lasting blue luminescence
Case Shape: Round
Case Material: Yellow Rolesor (Oystersteel and yellow gold)
Bezel: Fixed yellow gold bezel with engraved tachymetric scale
Crystal: Scratch-resistant sapphire
Case Back: Screw-down case back
Diameter: 40 mm
Water Resistance: Waterproof to 100 meters / 330 feet
Crown: Screw-down, Triplock triple waterproofness system
Bracelet: Oyster, three-piece solid links in Yellow Rolesor
Clasp: Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Reference #: 126503

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