🔹 Overview
The RL Cosmograph Daytona Ref. 116508-0013—known as the “John Mayer” Daytona—is a striking blend of luxury and motorsport heritage. Crafted entirely in 18 kt yellow gold, it features a vibrant green sunburst dial that shifts beautifully under light. Since its 2016 launch, this bold aesthetic combined with iconic Daytona chronograph functionality has made it one of the most coveted modern references.

💎 Key Specifications
Origin: Switzerland — part of the Oyster Perpetual Cosmograph Daytona line
Gender: Men’s / Unisex
Case Diameter: 40 mm Oyster case
Case Material: Solid 18 kt yellow gold with screw-down pushers and Triplock crown
Bezel: Fixed tachymetric bezel in yellow gold, engraved for speeds up to 400 units/hour
Dial: Green sunburst dial with golden reflections, contrasting sub-dials, and red accents
Hour Markers: 18 kt yellow gold indices with Chromalight lume
Bracelet: Yellow gold Oyster bracelet with Oysterlock clasp and 5 mm Easylink extension
Glass: Scratch-resistant sapphire crystal
Water Resistance: 100 m / 330 ft

⏱️ Movement
Caliber: RL Calibre 4130, self-winding chronograph with vertical clutch and column wheel
Certification: Superlative Chronometer, −2/+2 sec/day after casing
Power Reserve: ~72 hours
Frequency: 28,800 vph (4 Hz)
Hairspring & Protection: Parachrom hairspring, Paraflex shock absorbers
Functions:

• Central chronograph seconds
• 30-minute counter at 3 o’clock
• 12-hour counter at 9 o’clock
• Small seconds at 6 o’clock
• Tachymetric bezel for speed measurement

✅ Conclusion
The RL Daytona Ref. 116508-0013 stands out as a collector’s icon—its solid yellow-gold case exudes prestige, while the green dial with subtle red accents adds modern vibrancy. Powered by the proven Calibre 4130, it ensures precision, reliability, and a 72-hour reserve. Nicknamed the “John Mayer” Daytona, this reference embodies bold individuality, technical mastery, and enduring desirability within the Daytona legacy.