Rolex Cosmograph Daytona Ref. M126503-0001

🕰️ Overview

The Cosmograph Daytona Ref. M126503-0001 is a chronograph that blends sporty performance with refined elegance. Crafted in a combination of Oystersteel and 18 ct yellow gold, this model features a sleek white dial with gold-toned sub-dials, embodying the spirit of motorsport while maintaining a luxurious aesthetic.

🎨 Dial & Bezel

Dial: White dial with gold-colored chronograph sub-dials. The hour markers and hands are made of 18 ct yellow gold and filled with luminous material for long-lasting visibility.

Sub-dials: Three counters track seconds, 30 minutes, and 12 hours, allowing precise measurement of elapsed time.

Bezel: Fixed 18 ct yellow gold bezel engraved with a tachymetric scale, used to measure average speeds — a defining feature of the Daytona design.

💎 Case & Bracelet

Case: 40 mm Oyster-style case crafted from Oystersteel and yellow gold, with a screw-down Triplock crown and solid caseback. Provides water resistance up to 100 m / 330 ft.

Bracelet: Classic Oyster bracelet with three-piece solid links in Oystersteel and yellow gold. Secured by an Oysterlock folding clasp to prevent accidental opening, and equipped with the Easylink 5 mm extension system for added comfort.

🧠 Movement & Performance

The watch is fitted with the Calibre 4131 automatic chronograph movement, designed for accuracy and reliable performance. It incorporates a column wheel, vertical clutch, Paraflex shock absorbers, and a Parachrom hairspring, ensuring stability and resistance to environmental variations.

Functions include:

• Central chronograph seconds hand

• 30-minute counter at 3 o’clock

• 12-hour counter at 9 o’clock

• Small seconds at 6 o’clock

The movement offers a power reserve of approximately 72 hours and a stop-seconds function for precise time setting.

📋 Key Specifications