Description

Cosmograph Daytona 40 mm, Oystersteel and Yellow Gold with Champagne Dial Ref. M126503-0001

Overview

The Rolex Cosmograph Daytona Ref. M126503-0001 celebrates precision, performance, and prestige. Born for the racetrack and perfected for daily wear, this bi-metal timepiece in Oystersteel and 18 ct yellow gold embodies the seamless blend of sport and sophistication that defines the Daytona legend since 1963.

Design & Materials

• Case: 40 mm Oyster case crafted from a combination of Oystersteel and 18 ct yellow gold, featuring brushed lugs and polished surfaces for striking contrast.
• Bezel: Fixed yellow gold bezel engraved with a tachymetric scale for measuring average speeds up to 400 units per hour.
• Dial: Sunray-finished champagne dial with contrasting black sub-registers, gold-applied hour markers, and Chromalight luminescence for superior legibility.
• Hands: Polished gold hands with Chromalight coating emit a long-lasting blue glow in darkness.
• Bracelet: Solid-link Oyster bracelet in Oystersteel and 18 ct yellow gold, fitted with an Oysterlock safety clasp and Easylink comfort extension system.
• Aesthetic: Refined yet dynamic — the perfect balance between racing heritage and modern luxury.

Movement

• Caliber: Rolex Calibre 4131 — self-winding mechanical chronograph movement developed and manufactured entirely by Rolex.
• Functions: Centre hour, minute, and seconds hands; small seconds at 6 o’clock; chronograph with 30-minute and 12-hour counters; stop-seconds for precise time setting.
• Power Reserve: Approximately 72 hours.
• Features: Equipped with the Chronergy escapement, blue Parachrom hairspring, and Paraflex shock absorbers for maximum efficiency, shock resistance, and magnetic stability.
• Certification: Superlative Chronometer (COSC + Rolex in-house testing) guaranteeing precision of −2/+2 seconds per day.

Technical Specifications

• Reference: M126503-0001
• Collection: Rolex Cosmograph Daytona
• Case: Oystersteel and 18 ct yellow gold, 40 mm
• Bezel: Fixed yellow gold tachymetric bezel
• Dial: Champagne with black subdials and Chromalight display
• Crystal: Scratch-resistant sapphire crystal
• Bracelet: Oyster bracelet in Oystersteel and yellow gold with Oysterlock clasp
• Movement: Calibre 4131, automatic, 72-hour power reserve
• Water Resistance: 100 meters (330 feet)
• Condition: New / Unworn
• Box & Papers: Complete Rolex presentation box and 5-year international warranty card

Prestige & Value

The Rolex Cosmograph Daytona Ref. M126503-0001 is a masterpiece of engineering and elegance. Its two-tone construction radiates prestige, while the high-performance Calibre 4131 ensures uncompromising precision. From the race track to the executive suite, this Daytona represents the perfect fusion of Rolex’s technical innovation and timeless aesthetic — an icon of power, passion, and perfection.