RL Cosmograph Daytona 40 mm Ref. M126503‑0003
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RL Cosmograph Daytona 40 mm Ref. M126503‑0003
🔹 Overview
The RL Cosmograph Daytona 40 mm Ref. M126503-0003, crafted in Yellow Rolesor (Oystersteel and 18 ct yellow gold), is a modern expression of RL’s legendary racing chronograph. Featuring a bold black lacquer dial with gold-finished sub-dials and a fixed tachymeter bezel in yellow gold, it merges high-performance precision with two-tone elegance — a chronograph built for the track yet refined for everyday wear.
💎 Key Specifications
Reference: M126503-0003
Case: 40 mm Oyster case in Yellow Rolesor (Oystersteel & 18 ct yellow gold)
Bezel: Fixed yellow gold bezel with engraved tachymetric scale
Dial: Black lacquer with gold-tone subdials; Chromalight luminescent hands and hour markers in yellow gold
Crystal: Scratch-resistant sapphire
Bracelet: Oyster bracelet in Yellow Rolesor with brushed steel outer links, polished gold center links, Oysterlock safety clasp, Easylink 5 mm extension
Movement: RL Calibre 4131, self-winding chronograph
Functions: Hours, minutes, small seconds; central chronograph seconds; 30-minute and 12-hour counters; tachymeter
Power Reserve: ~72 hours
Water Resistance: 100 m / 330 ft
Certification: Superlative Chronometer (COSC + RL after casing)
⏱️ Movement
Type: Perpetual, mechanical, self-winding chronograph
Caliber: RL Calibre 4131
Features: Vertical clutch and column wheel for precise chronograph function; Chronergy escapement for efficiency; blue Parachrom hairspring; Paraflex shock absorbers; stop-seconds
Accuracy: −2/+2 seconds per day after casing
Power Reserve: Approximately 72 hours
✅ Conclusion
The RL Cosmograph Daytona Ref. M126503-0003 is a distinguished two-tone chronograph that blends luxury and performance. Its Rolesor construction, gold-accented black dial, and advanced Calibre 4131 make it equally suited for motorsport enthusiasts and collectors of refined timepieces. A watch that carries the spirit of Daytona’s racing legacy into a modern, sophisticated era.
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